{"id":177762,"date":"2025-11-11T22:57:23","date_gmt":"2025-11-11T15:57:23","guid":{"rendered":"https:\/\/tiki.vn\/blog\/?p=177762"},"modified":"2025-12-23T10:23:37","modified_gmt":"2025-12-23T03:23:37","slug":"cach-tinh-sin-cos-tan-cot-tren-may-tinh","status":"publish","type":"post","link":"https:\/\/tiki.vn\/blog\/cach-tinh-sin-cos-tan-cot-tren-may-tinh\/","title":{"rendered":"C\u00e1ch t\u00ednh sin, cos, tan, cot tr\u00ean m\u00e1y t\u00ednh Casio tr\u00e1nh l\u1ed7i sai"},"content":{"rendered":"<p style=\"text-align: justify;\">Vi\u1ec7c t\u00ednh to\u00e1n c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c sin, cos, tan l\u00e0 thao t\u00e1c c\u01a1 b\u1ea3n nh\u01b0ng kh\u00f4ng \u00edt h\u1ecdc sinh, sinh vi\u00ean g\u1eb7p kh\u00f3 kh\u0103n, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi t\u00ecm c\u00e1ch b\u1ea5m cotang (cot) ho\u1eb7c li\u00ean t\u1ee5c nh\u1eadn k\u1ebft qu\u1ea3 sai d\u00f9 \u0111\u00e3 nh\u1eadp \u0111\u00fang s\u1ed1. Nguy\u00ean nh\u00e2n th\u01b0\u1eddng \u0111\u1ebfn t\u1eeb m\u1ed9t c\u00e0i \u0111\u1eb7t nh\u1ecf nh\u01b0ng c\u1ef1c k\u1ef3 quan tr\u1ecdng tr\u00ean m\u00e1y t\u00ednh.<\/p>\n<p style=\"text-align: justify;\">B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n chi ti\u1ebft t\u1eebng b\u01b0\u1edbc b\u1ea5m sin, cos, tan, cot tr\u00ean hai d\u00f2ng m\u00e1y t\u00ednh Casio ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 FX-580VN X v\u00e0 FX-570VN PLUS, \u0111\u1ed3ng th\u1eddi ch\u1ec9 ra c\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i sai \u0111\u01a1n v\u1ecb g\u00f3c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 lu\u00f4n ch\u00ednh x\u00e1c.<\/p>\n<blockquote>\n<h2 style=\"text-align: justify;\"><strong>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/strong><\/h2>\n<ul>\n<li style=\"text-align: justify;\">Lu\u00f4n ki\u1ec3m tra \u0111\u01a1n v\u1ecb g\u00f3c (D &#8211; \u0110\u1ed9, R &#8211; Radian) tr\u01b0\u1edbc khi b\u1ea5m, \u0111\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 l\u01b0\u1ee3ng gi\u00e1c ch\u00ednh x\u00e1c.<\/li>\n<li style=\"text-align: justify;\">\u0110\u1ec3 t\u00ednh cotang (cot), s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c cot(x) = 1\/tan(x) ho\u1eb7c d\u00f9ng ph\u00edm ngh\u1ecbch \u0111\u1ea3o x\u207b\u00b9 sau khi b\u1ea5m tan(x) v\u00ec kh\u00f4ng c\u00f3 ph\u00edm ri\u00eang.<\/li>\n<li style=\"text-align: justify;\">T\u00ednh c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c ng\u01b0\u1ee3c b\u1eb1ng c\u00e1ch nh\u1ea5n t\u1ed5 h\u1ee3p ph\u00edm SHIFT c\u00f9ng v\u1edbi c\u00e1c ph\u00edm sin, cos, ho\u1eb7c tan (v\u00ed d\u1ee5: SHIFT + sin).<\/li>\n<li style=\"text-align: justify;\">Hai d\u00f2ng m\u00e1y Casio FX-580VN X v\u00e0 FX-570VN PLUS l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn, \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi v\u00e0 \u0111\u00e1p \u1ee9ng t\u1ed1t nhu c\u1ea7u h\u1ecdc t\u1eadp.<\/li>\n<\/ul>\n<\/blockquote>\n<h2 id=\"1luquantrngnhtchnngnvogcdrg\" style=\"text-align: justify;\"><strong>1. L\u01b0u \u00fd quan tr\u1ecdng: Ch\u1ecdn \u0111\u00fang \u0111\u01a1n v\u1ecb \u0111o g\u00f3c (D, R, G)<\/strong><\/h2>\n<p style=\"text-align: justify;\">\u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u khi\u1ebfn ph\u1ea7n l\u1edbn c\u00e1c ph\u00e9p t\u00ednh l\u01b0\u1ee3ng gi\u00e1c b\u1ecb sai. Tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 ph\u00e9p t\u00ednh n\u00e0o, b\u1ea1n ph\u1ea3i \u0111\u1ea3m b\u1ea3o <a href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc\/c1922\" target=\"_blank\" rel=\"noopener\">m\u00e1y t\u00ednh khoa h\u1ecdc<\/a> \u0111ang \u1edf \u0111\u00fang \u0111\u01a1n v\u1ecb \u0111o g\u00f3c m\u00e0 \u0111\u1ec1 b\u00e0i y\u00eau c\u1ea7u. Vi\u1ec7c n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c cho m\u1ecdi k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n, l\u00e0 b\u01b0\u1edbc kh\u00f4ng th\u1ec3 b\u1ecf qua \u0111\u1ec3 tr\u00e1nh nh\u1eefng sai l\u1ea7m \u0111\u00e1ng ti\u1ebfc trong ki\u1ec3m tra v\u00e0 thi c\u1eed.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>D (Degree &#8211; \u0110\u1ed9):<\/strong> L\u00e0 \u0111\u01a1n v\u1ecb g\u00f3c ph\u1ed5 bi\u1ebfn nh\u1ea5t trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc ph\u1ed5 th\u00f4ng, t\u1eeb c\u1ea5p 2 \u0111\u1ebfn c\u1ea5p 3. Khi m\u00e1y \u1edf ch\u1ebf \u0111\u1ed9 n\u00e0y, b\u1ea1n s\u1ebd th\u1ea5y m\u1ed9t ch\u1eef <strong>D<\/strong> nh\u1ecf hi\u1ec3n th\u1ecb \u1edf g\u00f3c tr\u00ean m\u00e0n h\u00ecnh.<\/li>\n<li><strong>R (Radian):<\/strong> \u0110\u01a1n v\u1ecb n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u00e0i to\u00e1n l\u01b0\u1ee3ng gi\u00e1c n\u00e2ng cao, kh\u1ea3o s\u00e1t h\u00e0m s\u1ed1 v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n cao c\u1ea5p \u1edf b\u1eadc \u0111\u1ea1i h\u1ecdc. K\u00fd hi\u1ec7u t\u01b0\u01a1ng \u1ee9ng l\u00e0 ch\u1eef <strong>R<\/strong> nh\u1ecf tr\u00ean m\u00e0n h\u00ecnh.<\/li>\n<li><strong>G (Gradian):<\/strong> L\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o g\u00f3c \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n v\u00e0 g\u1ea7n nh\u01b0 kh\u00f4ng xu\u1ea5t hi\u1ec7n trong ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc t\u1ea1i Vi\u1ec7t Nam, k\u00fd hi\u1ec7u l\u00e0 ch\u1eef <strong>G<\/strong>.<\/li>\n<\/ul>\n<figure id=\"attachment_177805\" aria-describedby=\"caption-attachment-177805\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177805\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-1.jpg\" alt=\"Ch\u1ecdn \u0111\u00fang \u0111\u01a1n v\u1ecb \u0111o g\u00f3c (D, R, G)\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-1.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-1-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-1-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-1-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177805\" class=\"wp-caption-text\">Ch\u1ecdn \u0111\u00fang \u0111\u01a1n v\u1ecb \u0111o g\u00f3c (D, R, G)<\/figcaption><\/figure>\n<h3 id=\"11cchchuyninvgctrnmycasiofx580vnx\" style=\"text-align: justify;\"><strong>1.1. C\u00e1ch chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e1y Casio FX-580VN X<\/strong><\/h3>\n<p style=\"text-align: justify;\">D\u00f2ng m\u00e1y <strong>Casio FX-580VN X<\/strong> c\u00f3 giao di\u1ec7n c\u00e0i \u0111\u1eb7t tr\u1ef1c quan, gi\u00fap b\u1ea1n chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb nhanh ch\u00f3ng.<\/p>\n<ul>\n<li><strong>B\u01b0\u1edbc 1<\/strong>: Nh\u1ea5n ph\u00edm <code>SHIFT<\/code> (ph\u00edm ch\u1ee9c n\u0103ng ph\u1ee5 m\u00e0u v\u00e0ng) r\u1ed3i nh\u1ea5n ph\u00edm <code>MENU<\/code> \u0111\u1ec3 truy c\u1eadp v\u00e0o m\u1ee5c <strong>SETUP<\/strong>.<\/li>\n<li><strong>B\u01b0\u1edbc 2<\/strong>: Nh\u1ea5n ph\u00edm s\u1ed1 <code>2<\/code> \u0111\u1ec3 ch\u1ecdn m\u1ee5c <strong>Angle Unit (\u0110\u01a1n v\u1ecb g\u00f3c)<\/strong>.<\/li>\n<li><strong>B\u01b0\u1edbc 3<\/strong>: Ch\u1ecdn \u0111\u01a1n v\u1ecb b\u1ea1n mong mu\u1ed1n: Nh\u1ea5n ph\u00edm <code>1<\/code> \u0111\u1ec3 chuy\u1ec3n sang <strong>\u0110\u1ed9 (Degree)<\/strong> ho\u1eb7c nh\u1ea5n ph\u00edm <code>2<\/code> \u0111\u1ec3 chuy\u1ec3n sang <strong>Radian<\/strong>.<\/li>\n<\/ul>\n<figure id=\"attachment_177806\" aria-describedby=\"caption-attachment-177806\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177806\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-2.jpg\" alt=\"C\u00e1ch chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e1y Casio FX-580VN X\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-2.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-2-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-2-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-2-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177806\" class=\"wp-caption-text\">C\u00e1ch chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e1y Casio FX-580VN X<\/figcaption><\/figure>\n<h3 id=\"12cchchuyninvgctrnmycasiofx570vnplus\" style=\"text-align: justify;\"><strong>1.2. C\u00e1ch chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e1y Casio FX-570VN PLUS<\/strong><\/h3>\n<p style=\"text-align: justify;\">V\u1edbi d\u00f2ng m\u00e1y <strong>Casio FX-570VN PLUS<\/strong>, c\u00e1c b\u01b0\u1edbc c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng v\u1ecb tr\u00ed c\u00e1c ph\u00edm ch\u1ee9c n\u0103ng c\u00f3 ch\u00fat kh\u00e1c bi\u1ec7t.<\/p>\n<ul>\n<li><strong>B\u01b0\u1edbc 1<\/strong>: Nh\u1ea5n ph\u00edm <code>SHIFT<\/code> r\u1ed3i nh\u1ea5n ph\u00edm <code>MODE<\/code> \u0111\u1ec3 v\u00e0o <strong>SETUP<\/strong>.<\/li>\n<li><strong>B\u01b0\u1edbc 2<\/strong>: M\u00e0n h\u00ecnh s\u1ebd hi\u1ec3n th\u1ecb danh s\u00e1ch c\u00e1c c\u00e0i \u0111\u1eb7t. B\u1ea1n nh\u1ea5n ph\u00edm s\u1ed1 <code>3<\/code> \u0111\u1ec3 ch\u1ecdn <strong>Deg (\u0110\u1ed9)<\/strong> ho\u1eb7c nh\u1ea5n ph\u00edm s\u1ed1 <code>4<\/code> \u0111\u1ec3 ch\u1ecdn <strong>Rad (Radian)<\/strong>.<\/li>\n<\/ul>\n<figure id=\"attachment_177807\" aria-describedby=\"caption-attachment-177807\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177807\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-3.jpg\" alt=\"C\u00e1ch chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e1y Casio FX-570VN PLUS\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-3.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-3-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-3-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-3-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177807\" class=\"wp-caption-text\">C\u00e1ch chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e1y Casio FX-570VN PLUS<\/figcaption><\/figure>\n<h2 id=\"2hngdnchititcchbmsincostancot\" style=\"text-align: justify;\"><strong>2. H\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch b\u1ea5m sin, cos, tan, cot<\/strong><\/h2>\n<h3 id=\"21cchtnhsinvcos\" style=\"text-align: justify;\"><strong>2.1. C\u00e1ch t\u00ednh sin v\u00e0 cos<\/strong><\/h3>\n<p style=\"text-align: justify;\">Hai h\u00e0m l\u01b0\u1ee3ng gi\u00e1c c\u01a1 b\u1ea3n n\u00e0y \u0111\u1ec1u c\u00f3 ph\u00edm b\u1ea5m chuy\u00ean d\u1ee5ng ngay tr\u00ean b\u00e0n ph\u00edm. Thao t\u00e1c b\u1ea5m chung l\u00e0 nh\u1ea5n ph\u00edm <code>sin<\/code> (ho\u1eb7c <code>cos<\/code>), nh\u1eadp gi\u00e1 tr\u1ecb g\u00f3c, \u0111\u00f3ng ngo\u1eb7c <code>)<\/code> n\u1ebfu c\u1ea7n thi\u1ebft v\u00e0 nh\u1ea5n ph\u00edm <code>=<\/code>.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>V\u00ed d\u1ee5 1: T\u00ednh sin(30\u00b0)<\/strong>\n<ul>\n<li><strong>B\u01b0\u1edbc 1:<\/strong> Ki\u1ec3m tra v\u00e0 \u0111\u1ea3m b\u1ea3o m\u00e0n h\u00ecnh m\u00e1y t\u00ednh \u0111ang hi\u1ec3n th\u1ecb ch\u1eef <strong>D<\/strong> (ch\u1ebf \u0111\u1ed9 \u0110\u1ed9).<\/li>\n<li><strong>B\u01b0\u1edbc 2:<\/strong> Nh\u1ea5n ph\u00edm <code>sin<\/code>, nh\u1eadp s\u1ed1 <code>30<\/code>, sau \u0111\u00f3 nh\u1ea5n ph\u00edm <code>=<\/code>. K\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c hi\u1ec3n th\u1ecb l\u00e0 1\/2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_177808\" aria-describedby=\"caption-attachment-177808\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177808\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-4.jpg\" alt=\"C\u00e1ch b\u1ea5m sin tr\u00ean m\u00e1y t\u00ednh Casio\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-4.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-4-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-4-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-4-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177808\" class=\"wp-caption-text\">C\u00e1ch b\u1ea5m sin tr\u00ean m\u00e1y t\u00ednh Casio<\/figcaption><\/figure>\n<ul style=\"text-align: justify;\">\n<li><strong>V\u00ed d\u1ee5 2: T\u00ednh cos(\u03c0\/3)<\/strong>\n<ul>\n<li><strong>B\u01b0\u1edbc 1:<\/strong> Chuy\u1ec3n m\u00e1y sang ch\u1ebf \u0111\u1ed9 <strong>Radian<\/strong> (m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb ch\u1eef <strong>R<\/strong>).<\/li>\n<li><strong>B\u01b0\u1edbc 2:<\/strong> Nh\u1ea5n ph\u00edm <code>cos<\/code>, sau \u0111\u00f3 nh\u1ea5n <code>SHIFT<\/code> &gt; <code>x10^x<\/code> \u0111\u1ec3 nh\u1eadp k\u00fd hi\u1ec7u \u03c0. Ti\u1ebfp theo, nh\u1ea5n ph\u00edm <code>\u00f7<\/code>, nh\u1eadp s\u1ed1 <code>3<\/code>, v\u00e0 \u0111\u00f3ng ngo\u1eb7c <code>)<\/code>.<\/li>\n<li><strong>B\u01b0\u1edbc 3:<\/strong> Nh\u1ea5n ph\u00edm <code>=<\/code>. K\u1ebft qu\u1ea3 nh\u1eadn \u0111\u01b0\u1ee3c l\u00e0 1\/2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_177809\" aria-describedby=\"caption-attachment-177809\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177809\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-5.jpg\" alt=\"C\u00e1ch b\u1ea5m cos tr\u00ean m\u00e1y t\u00ednh Casio\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-5.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-5-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-5-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-5-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177809\" class=\"wp-caption-text\">C\u00e1ch b\u1ea5m cos tr\u00ean m\u00e1y t\u00ednh Casio<\/figcaption><\/figure>\n<h3 id=\"22cchtnhtantang\" style=\"text-align: justify;\"><strong>2.2. C\u00e1ch t\u00ednh tan (tang)<\/strong><\/h3>\n<p style=\"text-align: justify;\">Thao t\u00e1c t\u00ednh tang ho\u00e0n to\u00e0n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 khi t\u00ednh sin v\u00e0 cos, b\u1ea1n ch\u1ec9 c\u1ea7n s\u1eed d\u1ee5ng ph\u00edm <code>tan<\/code> c\u00f3 s\u1eb5n tr\u00ean b\u00e0n ph\u00edm m\u00e1y t\u00ednh.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>V\u00ed d\u1ee5: T\u00ednh tan(45\u00b0)<\/strong>\n<ul>\n<li><strong>B\u01b0\u1edbc 1:<\/strong> \u0110\u1ea3m b\u1ea3o m\u00e1y t\u00ednh \u0111ang \u1edf ch\u1ebf \u0111\u1ed9 <strong>\u0110\u1ed9<\/strong> (m\u00e0n h\u00ecnh c\u00f3 ch\u1eef <strong>D<\/strong>).<\/li>\n<li><strong>B\u01b0\u1edbc 2:<\/strong> Nh\u1ea5n ph\u00edm <code>tan<\/code>, nh\u1eadp s\u1ed1 <code>45<\/code>, r\u1ed3i nh\u1ea5n ph\u00edm <code>=<\/code>. K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb l\u00e0 1.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_177810\" aria-describedby=\"caption-attachment-177810\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177810\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-6.jpg\" alt=\"C\u00e1ch b\u1ea5m tan tr\u00ean m\u00e1y t\u00ednh Casio\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-6.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-6-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-6-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-6-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177810\" class=\"wp-caption-text\">C\u00e1ch b\u1ea5m tan tr\u00ean m\u00e1y t\u00ednh Casio<\/figcaption><\/figure>\n<h3 id=\"23cchtnhcotcotang\" style=\"text-align: justify;\"><strong>2.3. C\u00e1ch t\u00ednh cot (cotang)<\/strong><\/h3>\n<p style=\"text-align: justify;\">M\u1ed9t \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd l\u00e0 c\u00e1c d\u00f2ng <a href=\"https:\/\/tiki.vn\/may-tinh-bo-tui\/c1925?brand=26150\" target=\"_blank\" rel=\"noopener\">m\u00e1y t\u00ednh Casio<\/a> kh\u00f4ng c\u00f3 ph\u00edm <code>cot<\/code> chuy\u00ean d\u1ee5ng. Do \u0111\u00f3, \u0111\u1ec3 t\u00ednh cotang, b\u1ea1n c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c c\u00f4ng th\u1ee9c l\u01b0\u1ee3ng gi\u00e1c c\u01a1 b\u1ea3n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 3 c\u00e1ch ph\u1ed5 bi\u1ebfn v\u00e0 ch\u00ednh x\u00e1c nh\u1ea5t m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng.<\/p>\n<h4 id=\"231dngcngthccotx1tanx\" style=\"text-align: justify;\"><strong>2.3.1. D\u00f9ng c\u00f4ng th\u1ee9c Cot(x) = 1 \/ Tan(x)<\/strong><\/h4>\n<p style=\"text-align: justify;\">\u0110\u00e2y l\u00e0 c\u00e1ch th\u00f4ng d\u1ee5ng, d\u1ec5 nh\u1edb v\u00e0 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c cho m\u1ecdi tr\u01b0\u1eddng h\u1ee3p m\u00e0 kh\u00f4ng c\u1ea7n quan t\u00e2m \u0111\u1ebfn \u0111\u01a1n v\u1ecb g\u00f3c l\u00e0 \u0110\u1ed9 hay Radian. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u1ec1n t\u1ea3ng \u0111\u1ec3 t\u00ednh to\u00e1n c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c ngh\u1ecbch \u0111\u1ea3o m\u1ed9t c\u00e1ch an to\u00e0n.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>V\u00ed d\u1ee5: T\u00ednh cot(30\u00b0)<\/strong>\n<ul>\n<li><strong>B\u01b0\u1edbc 1:<\/strong> \u0110\u1ea3m b\u1ea3o m\u00e0n h\u00ecnh \u0111ang hi\u1ec3n th\u1ecb ch\u1eef <strong>D<\/strong>.<\/li>\n<li><strong>B\u01b0\u1edbc 2:<\/strong> Nh\u1eadp theo th\u1ee9 t\u1ef1 <code>1<\/code> <code>\u00f7<\/code> <code>tan<\/code> <code>30<\/code> <code>=<\/code>. K\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng l\u00e0 \u221a3.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_177811\" aria-describedby=\"caption-attachment-177811\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177811\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-7.jpg\" alt=\"C\u00e1ch d\u00f9ng c\u00f4ng th\u1ee9c Cot(x) = 1 \/ Tan(x)\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-7.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-7-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-7-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-7-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177811\" class=\"wp-caption-text\">C\u00e1ch d\u00f9ng c\u00f4ng th\u1ee9c Cot(x) = 1 \/ Tan(x)<\/figcaption><\/figure>\n<h4 id=\"232dngphmnghchox\" style=\"text-align: justify;\"><strong>2.3.2. D\u00f9ng ph\u00edm ngh\u1ecbch \u0111\u1ea3o (x\u207b\u00b9)<\/strong><\/h4>\n<p style=\"text-align: justify;\">C\u00e1ch n\u00e0y nhanh h\u01a1n m\u1ed9t ch\u00fat, gi\u00fap ti\u1ebft ki\u1ec7m thao t\u00e1c b\u1ea5m ph\u00edm, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch tr\u00ean m\u00e1y <strong>Casio FX-580VN X<\/strong> c\u00f3 ph\u00edm b\u1ea5m nh\u1ea1y. B\u1ea1n ch\u1ec9 c\u1ea7n t\u00ednh tan(x) tr\u01b0\u1edbc, sau \u0111\u00f3 l\u1ea5y ngh\u1ecbch \u0111\u1ea3o c\u1ee7a k\u1ebft qu\u1ea3 \u0111\u00f3.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>V\u00ed d\u1ee5: T\u00ednh cot(30\u00b0)<\/strong>\n<ul>\n<li><strong>B\u01b0\u1edbc 1:<\/strong> \u0110\u1ea3m b\u1ea3o m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb ch\u1eef <strong>D<\/strong>.<\/li>\n<li><strong>B\u01b0\u1edbc 2:<\/strong> Nh\u1eadp <code>tan<\/code> <code>30<\/code> v\u00e0 \u0111\u00f3ng ngo\u1eb7c <code>)<\/code>.<\/li>\n<li><strong>B\u01b0\u1edbc 3:<\/strong> Nh\u1ea5n ph\u00edm <code>x\u207b\u00b9<\/code> (ph\u00edm ngh\u1ecbch \u0111\u1ea3o) ngay sau \u0111\u00f3, r\u1ed3i nh\u1ea5n <code>=<\/code>. K\u1ebft qu\u1ea3 l\u00e0 \u221a3.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_177812\" aria-describedby=\"caption-attachment-177812\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177812\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-8.jpg\" alt=\"C\u00e1ch d\u00f9ng ph\u00edm ngh\u1ecbch \u0111\u1ea3o (x\u207b\u00b9)\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-8.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-8-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-8-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-8-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177812\" class=\"wp-caption-text\">C\u00e1ch d\u00f9ng ph\u00edm ngh\u1ecbch \u0111\u1ea3o (x\u207b\u00b9)<\/figcaption><\/figure>\n<h4 id=\"233dngcngthccotxtan90x\" style=\"text-align: justify;\"><strong>2.3.3. D\u00f9ng c\u00f4ng th\u1ee9c Cot(x) = Tan(90\u00b0 &#8211; x)<\/strong><\/h4>\n<p style=\"text-align: justify;\">C\u00e1ch n\u00e0y d\u1ef1a tr\u00ean t\u00ednh ch\u1ea5t c\u1ee7a hai g\u00f3c ph\u1ee5 nhau trong l\u01b0\u1ee3ng gi\u00e1c (t\u1ed5ng b\u1eb1ng 90\u00b0). Tuy nhi\u00ean, b\u1ea1n c\u1ea7n h\u1ebft s\u1ee9c l\u01b0u \u00fd r\u1eb1ng c\u00f4ng th\u1ee9c n\u00e0y <strong>ch\u1ec9 \u00e1p d\u1ee5ng<\/strong> khi m\u00e1y t\u00ednh \u0111ang \u1edf \u0111\u01a1n v\u1ecb <strong>\u0110\u1ed9 (D)<\/strong>.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>V\u00ed d\u1ee5: T\u00ednh cot(30\u00b0)<\/strong>\n<ul>\n<li><strong>B\u01b0\u1edbc 1:<\/strong> \u0110\u1ea3m b\u1ea3o m\u00e0n h\u00ecnh \u0111ang hi\u1ec3n th\u1ecb ch\u1eef <strong>D<\/strong>.<\/li>\n<li><strong>B\u01b0\u1edbc 2:<\/strong> Nh\u1eadp <code>tan<\/code> <code>(<\/code> <code>90<\/code> <code>-<\/code> <code>30<\/code> <code>)<\/code> <code>=<\/code>. K\u1ebft qu\u1ea3 v\u1eabn l\u00e0 \u221a3.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_177814\" aria-describedby=\"caption-attachment-177814\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177814\" src=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-9.jpg\" alt=\"C\u00e1ch d\u00f9ng c\u00f4ng th\u1ee9c Cot(x) = Tan(90\u00b0 - x)\" width=\"800\" height=\"600\" srcset=\"https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-9.jpg 800w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-9-300x225.jpg 300w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-9-768x576.jpg 768w, https:\/\/tiki.vn\/blog\/wp-content\/uploads\/2025\/11\/cach-tinh-sin-cos-tan-cot-tren-may-tinh-9-696x522.jpg 696w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-177814\" class=\"wp-caption-text\">C\u00e1ch d\u00f9ng c\u00f4ng th\u1ee9c Cot(x) = Tan(90\u00b0 &#8211; x)<\/figcaption><\/figure>\n<h2 id=\"3giccdngmytnhcmtayphhpchohctpvthic\" style=\"text-align: justify;\"><strong>3. G\u1ee3i \u00fd c\u00e1c d\u00f2ng m\u00e1y t\u00ednh c\u1ea7m tay ph\u00f9 h\u1ee3p cho h\u1ecdc t\u1eadp v\u00e0 thi c\u1eed<\/strong><\/h2>\n<h3 id=\"31mytnhcasiofx580vnx\" style=\"text-align: justify;\"><strong>3.1. M\u00e1y t\u00ednh Casio FX-580VN X<\/strong><\/h3>\n<p style=\"text-align: justify;\">\u0110\u00e2y l\u00e0 d\u00f2ng m\u00e1y t\u00ednh khoa h\u1ecdc ti\u00ean ti\u1ebfn nh\u1ea5t c\u1ee7a <strong>Casio<\/strong> \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi. V\u1edbi m\u00e0n h\u00ecnh LCD \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao hi\u1ec3n th\u1ecb s\u1eafc n\u00e9t, t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd nhanh g\u1ea5p nhi\u1ec1u l\u1ea7n th\u1ebf h\u1ec7 c\u0169 v\u00e0 521 t\u00ednh n\u0103ng m\u1ea1nh m\u1ebd, <a href=\"https:\/\/tiki.vn\/may-tinh-casio-fx580vn-x-p104769768.html?spid=104769772\" target=\"_blank\" rel=\"noopener\">Casio FX-580VN X<\/a> l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho h\u1ecdc sinh c\u1ea5p 3 v\u00e0 sinh vi\u00ean c\u00e1c kh\u1ed1i ng\u00e0nh k\u1ef9 thu\u1eadt, kinh t\u1ebf. M\u00e1y gi\u1ea3i quy\u1ebft t\u1ed1t c\u00e1c b\u00e0i to\u00e1n ph\u1ee9c t\u1ea1p t\u1eeb ph\u01b0\u01a1ng tr\u00ecnh, b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh b\u1eadc 4, ma tr\u1eadn 4&#215;4 cho \u0111\u1ebfn b\u1ea3ng t\u00ednh.<\/p>\n<p style=\"text-align: justify;\">        <div class=\"tiki-product-slider\">\n            <div class='tiki-product-slider-title'>Mua ngay m\u00e1y t\u00ednh ch\u00ednh h\u00e3ng v\u1edbi m\u1ee9c gi\u00e1 t\u1ed1t t\u1ea1i Tiki:<\/div>\n            <div class=\"embla\">\n                <div class=\"embla__viewport\">\n                    <div class=\"embla__container\">            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-fx580vn-x-p104769768.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/59\/95\/09\/67d9c785594cb2e137678f5bf0da85cb.jpg\" alt=\"M\u00e1y T\u00ednh CASIO FX580VN X-BU (M\u00e0u\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO FX580VN X-BU (M\u00e0u\">M\u00e1y T\u00ednh CASIO FX580VN X-BU (M\u00e0u<\/h4>\n                    <div class=\"product-info-price\">\n                        750.700 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">816.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-8%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a><\/div>\n                <\/div>\n                \n            <\/div>\n        <\/div><\/p>\n<h3 id=\"32mytnhcasiofx570vnplusthh2\" style=\"text-align: justify;\"><strong>3.2. M\u00e1y t\u00ednh Casio FX-570VN PLUS (Th\u1ebf h\u1ec7 2)<\/strong><\/h3>\n<p style=\"text-align: justify;\">L\u00e0 d\u00f2ng m\u00e1y t\u00ednh &#8220;qu\u1ed1c d\u00e2n&#8221; quen thu\u1ed9c, <a href=\"https:\/\/tiki.vn\/may-tinh-casio-fx-570vn-plus-new-danh-cho-hoc-sinh-cap-2-3-chuyen-dung-phong-thi-va-thi-dai-hoc-p174038516.html\" target=\"_blank\" rel=\"noopener\">Casio FX-570VN PLUS<\/a> n\u1ed5i ti\u1ebfng v\u1edbi \u0111\u1ed9 b\u1ec1n b\u1ec9 v\u00e0 \u0111\u00e1ng tin c\u1eady. M\u00e1y \u0111\u01b0\u1ee3c trang b\u1ecb 453 t\u00ednh n\u0103ng, \u0111\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 nhu c\u1ea7u c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc t\u1eeb c\u1ea5p 2 \u0111\u1ebfn c\u1ea5p 3 v\u1edbi m\u1ee9c gi\u00e1 ph\u1ea3i ch\u0103ng. \u0110\u00e2y l\u00e0 m\u1ed9t d\u1ee5ng c\u1ee5 h\u1ecdc t\u1eadp kh\u00f4ng th\u1ec3 thi\u1ebfu, gi\u00fap h\u1ecdc sinh l\u00e0m quen v\u00e0 th\u00e0nh th\u1ea1o c\u00e1c ph\u00e9p t\u00ednh c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p style=\"text-align: justify;\">        <div class=\"tiki-product-slider\">\n            <div class='tiki-product-slider-title'>Mua ngay m\u00e1y t\u00ednh ch\u00ednh h\u00e3ng v\u1edbi m\u1ee9c gi\u00e1 t\u1ed1t t\u1ea1i Tiki:<\/div>\n            <div class=\"embla\">\n                <div class=\"embla__viewport\">\n                    <div class=\"embla__container\"><\/div>\n                <\/div>\n                \n            <\/div>\n        <\/div><\/p>\n<h3 id=\"33mytnhvinacal680explus\" style=\"text-align: justify;\"><strong>3.3. M\u00e1y t\u00ednh Vinacal 680EX Plus<\/strong><\/h3>\n<p style=\"text-align: justify;\">L\u00e0 \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh tr\u1ef1c ti\u1ebfp c\u1ee7a Casio FX-580VN X, <a href=\"https:\/\/tiki.vn\/may-tinh-vinacal-680ex-plus-mau-hong-p276031379.html\" target=\"_blank\" rel=\"noopener\">Vinacal 680EX Plus<\/a> c\u0169ng l\u00e0 s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi theo quy \u0111\u1ecbnh. M\u00e1y s\u1edf h\u1eefu nhi\u1ec1u t\u00ednh n\u0103ng \u0111\u1eb7c bi\u1ec7t nh\u01b0 t\u00ecm Lim, l\u01b0u nghi\u1ec7m ph\u01b0\u01a1ng tr\u00ecnh, t\u00edch ph\u00e2n c\u00f3 ch\u1ee9a \u1ea9n, b\u1ea3ng tu\u1ea7n ho\u00e0n h\u00f3a h\u1ecdc. Nh\u1eefng t\u00ednh n\u0103ng n\u00e0y r\u1ea5t h\u1eefu \u00edch cho c\u00e1c b\u1ea1n h\u1ecdc sinh chuy\u00ean kh\u1ed1i t\u1ef1 nhi\u00ean, gi\u00fap gi\u1ea3i quy\u1ebft nhanh c\u00e1c d\u1ea1ng b\u00e0i to\u00e1n \u0111\u1eb7c th\u00f9.<\/p>\n<p style=\"text-align: justify;\">        <div class=\"tiki-product-slider\">\n            <div class='tiki-product-slider-title'>Mua ngay m\u00e1y t\u00ednh ch\u00ednh h\u00e3ng v\u1edbi m\u1ee9c gi\u00e1 t\u1ed1t t\u1ea1i Tiki:<\/div>\n            <div class=\"embla\">\n                <div class=\"embla__viewport\">\n                    <div class=\"embla__container\">            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-vinacal-680ex-plus-mau-hong-p276031379.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/e7\/37\/e6\/b1b4eef927b79c8a436a8b64fb354d05.jpg\" alt=\"M\u00e1y T\u00ednh Vinacal 680EX Plus - M\u00e0u H\u1ed3ng\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Vinacal 680EX Plus - M\u00e0u H\u1ed3ng\">M\u00e1y T\u00ednh Vinacal 680EX Plus - M\u00e0u H\u1ed3ng<\/h4>\n                    <div class=\"product-info-price\">\n                        639.500 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">646.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a><\/div>\n                <\/div>\n                \n            <\/div>\n        <\/div><\/p>\n<h2 id=\"4muamytnhcmtaychnhhngantmtitikivn\" style=\"text-align: justify;\"><strong>4. Mua m\u00e1y t\u00ednh c\u1ea7m tay ch\u00ednh h\u00e3ng, an t\u00e2m t\u1ea1i Tiki.vn<\/strong><\/h2>\n<p style=\"text-align: justify;\">\u0110\u1ec3 tr\u00e1nh mua ph\u1ea3i h\u00e0ng gi\u1ea3, h\u00e0ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng, vi\u1ec7c l\u1ef1a ch\u1ecdn n\u01a1i b\u00e1n uy t\u00edn l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. <a href=\"https:\/\/tiki.vn\/nha-sach-tiki\/c8322\" target=\"_blank\" rel=\"noopener\">Tiki<\/a> l\u00e0 \u0111\u1ecba ch\u1ec9 h\u00e0ng \u0111\u1ea7u \u0111\u1ec3 mua <a href=\"https:\/\/tiki.vn\/may-tinh-bo-tui\/c1925\" target=\"_blank\" rel=\"noopener\">m\u00e1y t\u00ednh c\u1ea7m tay<\/a> ch\u00ednh h\u00e3ng, n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 s\u1edf h\u1eefu s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi gi\u00e1 t\u1ed1t v\u00e0 tr\u1ea3i nghi\u1ec7m mua s\u1eafm an t\u00e2m tuy\u1ec7t \u0111\u1ed1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi nh\u00e0 b\u00e1n Tiki Trading.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>100% h\u00e0ng ch\u00ednh h\u00e3ng:<\/strong> Tiki cam k\u1ebft x\u00e1c th\u1ef1c ngu\u1ed3n g\u1ed1c s\u1ea3n ph\u1ea9m, \u0111\u1ea3m b\u1ea3o h\u00e0ng ch\u00ednh h\u00e3ng t\u1eeb nh\u00e0 ph\u00e2n ph\u1ed1i \u0111\u1ed9c quy\u1ec1n Bitex v\u1edbi \u0111\u1ea7y \u0111\u1ee7 tem b\u1ea3o h\u00e0nh, tem ch\u1ed1ng gi\u1ea3.<\/li>\n<li><strong>An t\u00e2m nh\u1eadn h\u00e0ng:<\/strong> B\u1ea1n \u0111\u01b0\u1ee3c m\u1edf h\u1ed9p ki\u1ec3m tra khi nh\u1eadn h\u00e0ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m \u0111\u00fang nh\u01b0 m\u00f4 t\u1ea3, kh\u00f4ng m\u00f3p m\u00e9o hay h\u01b0 h\u1ecfng, \u0111\u00fang model \u0111\u00e3 \u0111\u1eb7t.<\/li>\n<li><strong>\u0110\u1ed5i tr\u1ea3 d\u1ec5 d\u00e0ng:<\/strong> Ch\u00ednh s\u00e1ch \u0111\u1ed5i tr\u1ea3 mi\u1ec5n ph\u00ed \u0111\u00fang h\u1eb9n v\u00e0 nhanh ch\u00f3ng n\u1ebfu s\u1ea3n ph\u1ea9m c\u00f3 b\u1ea5t k\u1ef3 l\u1ed7i n\u00e0o t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t.<\/li>\n<li><strong>Giao h\u00e0ng nhanh ch\u00f3ng:<\/strong> V\u1edbi d\u1ecbch v\u1ee5 TikiNOW giao nhanh trong 2H, b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m s\u1edbm nh\u1ea5t \u0111\u1ec3 ph\u1ee5c v\u1ee5 ngay cho vi\u1ec7c h\u1ecdc t\u1eadp.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">        <div class=\"tiki-product-slider\">\n            <div class='tiki-product-slider-title'>Mua ngay m\u00e1y t\u00ednh ch\u00ednh h\u00e3ng v\u1edbi m\u1ee9c gi\u00e1 t\u1ed1t t\u1ea1i Tiki:<\/div>\n            <div class=\"embla\">\n                <div class=\"embla__viewport\">\n                    <div class=\"embla__container\">            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-thien-long-flexio-fx509vn-co-hon-240-tinh-nang-p275710525.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/f4\/a8\/91\/164a0cc7493753dce287aa6bbfd1f286.png\" alt=\"M\u00e1y t\u00ednh khoa h\u1ecdc Thi\u00ean Long Flexio Fx509VN - D\u00e0nh cho h\u1ecdc sinh c\u00f3 h\u01a1n 240 t\u00ednh n\u0103ng \u0111\u1ea1t chu\u1ea9n mang v\u00e0o ph\u00f2ng thi\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/21\/c9\/ce\/ecf520f4346274799396496b3cbbf7d8.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh khoa h\u1ecdc Thi\u00ean Long Flexio Fx509VN - D\u00e0nh cho h\u1ecdc sinh c\u00f3 h\u01a1n 240 t\u00ednh n\u0103ng \u0111\u1ea1t chu\u1ea9n mang v\u00e0o ph\u00f2ng thi\">M\u00e1y t\u00ednh khoa h\u1ecdc Thi\u00ean Long Flexio Fx509VN - D\u00e0nh cho h\u1ecdc sinh c\u00f3 h\u01a1n 240 t\u00ednh n\u0103ng \u0111\u1ea1t chu\u1ea9n mang v\u00e0o ph\u00f2ng thi<\/h4>\n                    <div class=\"product-info-price\">\n                        103.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">154.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-33%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 07\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-thien-long-flexio-fx799vn-p263450978.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/02\/03\/0d\/1e48dd37e91d9ac1d6026bafef02399e.png\" alt=\"M\u00e1y t\u00ednh khoa h\u1ecdc Thi\u00ean Long Flexio Fx799VN - M\u00e1y t\u00ednh h\u1ecdc sinh, sinh vi\u00ean, b\u1ea3o h\u00e0nh 7 n\u0103m, \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/21\/c9\/ce\/ecf520f4346274799396496b3cbbf7d8.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh khoa h\u1ecdc Thi\u00ean Long Flexio Fx799VN - M\u00e1y t\u00ednh h\u1ecdc sinh, sinh vi\u00ean, b\u1ea3o h\u00e0nh 7 n\u0103m, \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi\">M\u00e1y t\u00ednh khoa h\u1ecdc Thi\u00ean Long Flexio Fx799VN - M\u00e1y t\u00ednh h\u1ecdc sinh, sinh vi\u00ean, b\u1ea3o h\u00e0nh 7 n\u0103m, \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi<\/h4>\n                    <div class=\"product-info-price\">\n                        556.800 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">669.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-17%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 07\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-deli-d991es-duoc-phep-mang-vao-phong-thi-p15972401.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/03\/30\/22\/431bce8d0f9503d72952cc00a51b4599.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Deli D991ES (\u0110\u01b0\u1ee3c Ph\u00e9p Mang V\u00e0o Ph\u00f2ng Thi)\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Deli D991ES (\u0110\u01b0\u1ee3c Ph\u00e9p Mang V\u00e0o Ph\u00f2ng Thi)\">M\u00e1y T\u00ednh Khoa H\u1ecdc Deli D991ES (\u0110\u01b0\u1ee3c Ph\u00e9p Mang V\u00e0o Ph\u00f2ng Thi)<\/h4>\n                    <div class=\"product-info-price\">\n                        440.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 5, 09\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-deli-e1710a-p59470906.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/d8\/74\/f6\/ca48139e999b52244d20ca23288cf48e.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Deli E1710A\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Deli E1710A\">M\u00e1y T\u00ednh Khoa H\u1ecdc Deli E1710A<\/h4>\n                    <div class=\"product-info-price\">\n                        200.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 5, 09\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-casio-fx-580vn-x-p3014291.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/f4\/ee\/6e\/adada014b8a2021ebe0d03355775246f.png\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Casio FX-580VN X\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Casio FX-580VN X\">M\u00e1y T\u00ednh Khoa H\u1ecdc Casio FX-580VN X<\/h4>\n                    <div class=\"product-info-price\">\n                        789.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 5, 09\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx509vn-mau-tim-p275971039.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/fd\/cb\/d0\/7670faaa7edc4f77b7b197701a6cf615.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx509VN - M\u00e0u T\u00edm\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx509VN - M\u00e0u T\u00edm\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx509VN - M\u00e0u T\u00edm<\/h4>\n                    <div class=\"product-info-price\">\n                        127.700 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">129.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx799vn-mau-den-mau-2-p275770209.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/74\/a7\/47\/e2b79913002ce26665b072ca0a1036db.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u \u0110en - M\u1eabu 2\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u \u0110en - M\u1eabu 2\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u \u0110en - M\u1eabu 2<\/h4>\n                    <div class=\"product-info-price\">\n                        667.300 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">688.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-3%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-thien-long-flexio-fx680vn-plus-mau-xanh-p271100543.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/3e\/35\/c8\/6834416f0439bfc446aa15bac61bf131.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Thi\u00ean Long Flexio Fx680VN Plus - M\u00e0u Xanh\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Thi\u00ean Long Flexio Fx680VN Plus - M\u00e0u Xanh\">M\u00e1y T\u00ednh Khoa H\u1ecdc Thi\u00ean Long Flexio Fx680VN Plus - M\u00e0u Xanh<\/h4>\n                    <div class=\"product-info-price\">\n                        628.600 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">635.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx799vn-mau-trang-2-p276962801.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/91\/be\/90\/5991c50f2e82e9e20b807ffef7f01670.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Tr\u1eafng 2\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Tr\u1eafng 2\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Tr\u1eafng 2<\/h4>\n                    <div class=\"product-info-price\">\n                        681.100 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">688.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx799vn-mau-xanh-bac-ha-p275770231.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/da\/9f\/e7\/a6eb6bbe904f7b994b7d9f7ba33fd6c9.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Xanh B\u1ea1c H\u00e0\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Xanh B\u1ea1c H\u00e0\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Xanh B\u1ea1c H\u00e0<\/h4>\n                    <div class=\"product-info-price\">\n                        681.100 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">688.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx799vn-mau-xanh-duong-p275770229.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/0c\/c3\/a9\/a5ba9be9fe56894d93cd2f28ffd66ce4.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Xanh D\u01b0\u01a1ng\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Xanh D\u01b0\u01a1ng\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u Xanh D\u01b0\u01a1ng<\/h4>\n                    <div class=\"product-info-price\">\n                        681.100 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">688.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx799vn-mau-hong-mau-2-p275770211.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/b1\/c0\/3b\/825562b9d32036cc299f7d2dec914c41.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u H\u1ed3ng - M\u1eabu 2\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u H\u1ed3ng - M\u1eabu 2\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - M\u00e0u H\u1ed3ng - M\u1eabu 2<\/h4>\n                    <div class=\"product-info-price\">\n                        681.100 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">688.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc-flexio-thien-long-fx799vn-phien-ban-2025-mau-tim-p278676582.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/eb\/46\/18\/7f732603e4aaf05e1eba6fb8f902e16d.jpg\" alt=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - Phi\u00ean B\u1ea3n 2025 - M\u00e0u T\u00edm\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - Phi\u00ean B\u1ea3n 2025 - M\u00e0u T\u00edm\">M\u00e1y T\u00ednh Khoa H\u1ecdc Flexio - Thi\u00ean Long Fx799VN - Phi\u00ean B\u1ea3n 2025 - M\u00e0u T\u00edm<\/h4>\n                    <div class=\"product-info-price\">\n                        849.400 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">858.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-1%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/to-den-voi-khoa-hoc-may-tinh-su-dung-may-tinh-an-toan-p146226406.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/e9\/65\/1a\/1564dcb32819cd88760b907e8b92ec16.jpg\" alt=\"T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n\">T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n<\/h4>\n                    <div class=\"product-info-price\">\n                        39.200 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">49.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-20%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/so-tay-khoa-hoc-may-tinh-va-ma-hoa-p214753111.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/69\/21\/93\/b0ef11f6e32d1d3b7ec471be03bed28f.jpg\" alt=\"S\u1ed5 Tay Khoa H\u1ecdc M\u00e1y T\u00ednh V\u00e0 M\u00e3 H\u00f3a\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"S\u1ed5 Tay Khoa H\u1ecdc M\u00e1y T\u00ednh V\u00e0 M\u00e3 H\u00f3a\">S\u1ed5 Tay Khoa H\u1ecdc M\u00e1y T\u00ednh V\u00e0 M\u00e3 H\u00f3a<\/h4>\n                    <div class=\"product-info-price\">\n                        435.600 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">495.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-12%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/to-den-voi-khoa-hoc-may-tinh-su-dung-may-tinh-an-toan-ban-quyen-p276592875.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/dd\/41\/ec\/dc97537a738f9ebb105d987e9ecee61b.jpg\" alt=\"T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh - S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n - B\u1ea3n Quy\u1ec1n\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh - S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n - B\u1ea3n Quy\u1ec1n\">T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh - S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n - B\u1ea3n Quy\u1ec1n<\/h4>\n                    <div class=\"product-info-price\">\n                        39.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">49.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-20%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 5, 09\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/sach-to-den-voi-khoa-hoc-may-tinh-su-dung-may-tinh-an-toan-tai-ban-p112442076.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/a7\/d6\/2e\/e074c75b7389a34d4a0605082013a16e.jpg\" alt=\"S\u00e1ch T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n (T\u00e1i B\u1ea3n)\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/12\/e2\/4a\/c5226426ee9429b0050449ae5403c9cf.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"S\u00e1ch T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n (T\u00e1i B\u1ea3n)\">S\u00e1ch T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: S\u1eed D\u1ee5ng M\u00e1y T\u00ednh An To\u00e0n (T\u00e1i B\u1ea3n)<\/h4>\n                    <div class=\"product-info-price\">\n                        31.900 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">49.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-35%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/combo-bo-4-cuon-to-den-voi-khoa-hoc-may-tinh-p104049769.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/28\/32\/74\/30d85d11523fda6ca31514154e117dbe.jpg\" alt=\"Combo B\u1ed9 4 Cu\u1ed1n: T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/12\/e2\/4a\/c5226426ee9429b0050449ae5403c9cf.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"Combo B\u1ed9 4 Cu\u1ed1n: T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh\">Combo B\u1ed9 4 Cu\u1ed1n: T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh<\/h4>\n                    <div class=\"product-info-price\">\n                        144.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">196.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-27%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/bach-khoa-thu-ve-phat-trien-ky-nang-khoa-hoc-may-tinh-p195443800.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/66\/ff\/95\/725e623eb01e0a4d35701368868dcd87.jpg\" alt=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\">B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh<\/h4>\n                    <div class=\"product-info-price\">\n                        280.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 07\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/bach-khoa-thu-ve-phat-trien-ky-nang-khoa-hoc-may-tinh-p200727076.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/6c\/55\/a9\/bde5ea22b120774a508e93ddb4f2f2f0.jpg\" alt=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/b2\/8d\/56\/3086efc2194320a6b83fba7530de7c78.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\">B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh<\/h4>\n                    <div class=\"product-info-price\">\n                        280.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 07\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/bach-khoa-thu-ve-phat-trien-ky-nang-khoa-hoc-may-tinh-p212323965.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/79\/ca\/d4\/8a3268026ba20532799f8a25a91eae35.jpg\" alt=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\">B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh<\/h4>\n                    <div class=\"product-info-price\">\n                        280.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 07\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/bach-khoa-thu-ve-phat-trien-ky-nang-khoa-hoc-may-tinh-p195573633.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/bc\/10\/20\/70e5788473eff1c67d600325d570abf8.jpg\" alt=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh\">B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh<\/h4>\n                    <div class=\"product-info-price\">\n                        252.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">280.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-10%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/to-den-voi-khoa-hoc-may-tinh-may-tinh-bang-hoat-dong-nhu-the-nao-p146226429.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/f6\/cd\/af\/8a8dbee6f07581104990ee237de8c69a.jpg\" alt=\"T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: M\u00e1y T\u00ednh B\u1ea3ng Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: M\u00e1y T\u00ednh B\u1ea3ng Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o\">T\u1edb \u0110\u1ebfn V\u1edbi Khoa H\u1ecdc M\u00e1y T\u00ednh: M\u00e1y T\u00ednh B\u1ea3ng Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o<\/h4>\n                    <div class=\"product-info-price\">\n                        39.200 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">49.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-20%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 08\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/bach-khoa-thu-ve-phat-trien-ky-nang-khoa-hoc-may-tinh-dt-p203092558.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/20\/fa\/cb\/d348a3f3daefca24b806197450b10780.jpg\" alt=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh - \u0110T\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh - \u0110T\">B\u00e1ch Khoa Th\u01b0 V\u1ec1 Ph\u00e1t Tri\u1ec3n K\u1ef9 N\u0103ng - Khoa H\u1ecdc M\u00e1y T\u00ednh - \u0110T<\/h4>\n                    <div class=\"product-info-price\">\n                        280.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 07\/04<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a><\/div>\n                <\/div>\n                        <button class=\"embla__control embla__prev\"><iconify-icon icon=\"tabler:chevron-left\"><\/iconify-icon><\/button>\n        <button class=\"embla__control embla__next\"><iconify-icon icon=\"tabler:chevron-right\"><\/iconify-icon><\/button>\n            <\/div>\n        <\/div><\/p>\n<h2 id=\"5cccuhilinquan\" style=\"text-align: justify;\"><strong>5. C\u00e1c c\u00e2u h\u1ecfi li\u00ean quan<\/strong><\/h2>\n<h3 id=\"51tisaoktqutnhsincoscatilunsaisovipn\" style=\"text-align: justify;\"><strong>5.1. T\u1ea1i sao k\u1ebft qu\u1ea3 t\u00ednh sin cos c\u1ee7a t\u00f4i lu\u00f4n sai so v\u1edbi \u0111\u00e1p \u00e1n?<\/strong><\/h3>\n<p style=\"text-align: justify;\">Nguy\u00ean nh\u00e2n g\u1ea7n nh\u01b0 ch\u1eafc ch\u1eafn l\u00e0 do b\u1ea1n \u0111ang \u0111\u1ec3 sai \u0111\u01a1n v\u1ecb \u0111o g\u00f3c. H\u00e3y ki\u1ec3m tra l\u1ea1i k\u00fd hi\u1ec7u <strong>D<\/strong> (\u0110\u1ed9) ho\u1eb7c <strong>R<\/strong> (Radian) tr\u00ean c\u00f9ng m\u00e0n h\u00ecnh. N\u1ebfu \u0111\u1ec1 b\u00e0i cho g\u00f3c l\u00e0 30\u00b0, 45\u00b0, 60\u00b0 th\u00ec ph\u1ea3i d\u00f9ng <strong>D<\/strong>, c\u00f2n n\u1ebfu cho g\u00f3c d\u1ea1ng \u03c0\/2, \u03c0\/3 th\u00ec ph\u1ea3i d\u00f9ng <strong>R<\/strong>. Th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i nh\u01b0 h\u01b0\u1edbng d\u1eabn \u1edf \u0111\u1ea7u b\u00e0i vi\u1ebft \u0111\u1ec3 kh\u1eafc ph\u1ee5c.<\/p>\n<h3 id=\"52mytnhhinmatherrorthphilmsao\" style=\"text-align: justify;\"><strong>5.2. M\u00e1y t\u00ednh hi\u1ec7n &#8220;Math ERROR&#8221; th\u00ec ph\u1ea3i l\u00e0m sao?<\/strong><\/h3>\n<p style=\"text-align: justify;\">L\u1ed7i n\u00e0y x\u1ea3y ra khi b\u1ea1n th\u1ef1c hi\u1ec7n m\u1ed9t ph\u00e9p t\u00ednh c\u00f3 gi\u00e1 tr\u1ecb kh\u00f4ng x\u00e1c \u0111\u1ecbnh trong to\u00e1n h\u1ecdc, v\u00ed d\u1ee5 nh\u01b0 t\u00ednh tan(90\u00b0) hay cot(0\u00b0). \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i c\u1ee7a m\u00e1y m\u00e0 l\u00e0 do \u0111\u1eb7c t\u00ednh c\u1ee7a h\u00e0m s\u1ed1 l\u01b0\u1ee3ng gi\u00e1c t\u1ea1i c\u00e1c \u0111i\u1ec3m \u0111\u00f3. B\u1ea1n c\u1ea7n ki\u1ec3m tra l\u1ea1i gi\u00e1 tr\u1ecb g\u00f3c \u0111\u00e3 nh\u1eadp \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gi\u00e1 tr\u1ecb n\u1eb1m trong t\u1eadp x\u00e1c \u0111\u1ecbnh c\u1ee7a h\u00e0m s\u1ed1.<\/p>\n<h3 id=\"53lmthnotnhcchmngcarcsinarccosarctan\" style=\"text-align: justify;\"><strong>5.3. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh c\u00e1c h\u00e0m ng\u01b0\u1ee3c arcsin, arccos, arctan?<\/strong><\/h3>\n<p style=\"text-align: justify;\">\u0110\u1ec3 t\u00ednh c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c ng\u01b0\u1ee3c, b\u1ea1n s\u1eed d\u1ee5ng t\u1ed5 h\u1ee3p ph\u00edm <code>SHIFT<\/code> k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u00edm <code>sin<\/code>, <code>cos<\/code>, <code>tan<\/code>. C\u1ee5 th\u1ec3, nh\u1ea5n <code>SHIFT<\/code> + <code>sin<\/code> \u0111\u1ec3 t\u00ednh arcsin (sin\u207b\u00b9), <code>SHIFT<\/code> + <code>cos<\/code> \u0111\u1ec3 t\u00ednh arccos (cos\u207b\u00b9), v\u00e0 <code>SHIFT<\/code> + <code>tan<\/code> \u0111\u1ec3 t\u00ednh arctan (tan\u207b\u00b9).<\/p>\n<h3 id=\"54lmsaobitmytnhcasiolhngtht\" style=\"text-align: justify;\"><strong>5.4. L\u00e0m sao \u0111\u1ec3 bi\u1ebft m\u00e1y t\u00ednh Casio l\u00e0 h\u00e0ng th\u1eadt?<\/strong><\/h3>\n<p style=\"text-align: justify;\">M\u00e1y t\u00ednh <strong>Casio<\/strong> ch\u00ednh h\u00e3ng do Bitex ph\u00e2n ph\u1ed1i t\u1ea1i Vi\u1ec7t Nam lu\u00f4n c\u00f3 tem ch\u1ed1ng gi\u1ea3 3D c\u00f4ng ngh\u1ec7 m\u1edbi d\u00e1n tr\u00ean th\u00e2n m\u00e1y. B\u1ea1n c\u00f3 th\u1ec3 soi tem d\u01b0\u1edbi c\u00e1c g\u00f3c \u0111\u1ed9 \u00e1nh s\u00e1ng kh\u00e1c nhau \u0111\u1ec3 ki\u1ec3m tra. C\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u00e0 mua h\u00e0ng t\u1ea1i c\u00e1c \u0111\u01a1n v\u1ecb ph\u00e2n ph\u1ed1i uy t\u00edn nh\u01b0 Tiki Trading, n\u01a1i s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c cam k\u1ebft v\u1ec1 ngu\u1ed3n g\u1ed1c v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<p><strong>Xem th\u00eam<\/strong>:<\/p>\n<ul>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/tiki.vn\/blog\/cach-tinh-luy-thua-tren-may-tinh-casio\/\" target=\"_blank\" rel=\"noopener\">C\u00e1ch t\u00ednh l\u0169y th\u1eeba tr\u00ean m\u00e1y t\u00ednh Casio \u0111\u01a1n gi\u1ea3n, nhanh ch\u00f3ng<\/a><\/li>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/tiki.vn\/blog\/cach-bam-xac-suat-tren-may-tinh-casio\/\" target=\"_blank\" rel=\"noopener\">C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t, ch\u1ec9nh h\u1ee3p, t\u1ed5 h\u1ee3p tr\u00ean m\u00e1y t\u00ednh Casio chi ti\u1ebft<\/a><\/li>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/tiki.vn\/blog\/cach-tim-so-du-tren-may-tinh\/\" target=\"_blank\" rel=\"noopener\">C\u00e1ch t\u00ecm s\u1ed1 d\u01b0 tr\u00ean m\u00e1y t\u00ednh Casio chi ti\u1ebft, nhanh ch\u00f3ng<\/a><\/li>\n<li><a href=\"https:\/\/fastconverters.online\/\">Chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb<\/a><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><em>Vi\u1ec7c t\u00ednh to\u00e1n sin, cos, tan v\u00e0 cot tr\u00ean m\u00e1y t\u00ednh Casio s\u1ebd tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n v\u00e0 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i n\u1ebfu b\u1ea1n n\u1eafm v\u1eefng quy t\u1eafc. H\u00e3y nh\u1edb th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean s\u1ebd gi\u00fap b\u1ea1n th\u00e0nh th\u1ea1o c\u00e1c thao t\u00e1c n\u00e0y \u0111\u1ec3 t\u1ef1 tin h\u01a1n trong h\u1ecdc t\u1eadp v\u00e0 thi c\u1eed. Mua m\u00e1y t\u00ednh c\u1ea7m tay ch\u00ednh h\u00e3ng t\u1ea1i Tiki \u2013 gi\u00e1 t\u1ed1t, b\u1ea3o h\u00e0nh r\u00f5 r\u00e0ng, giao nhanh.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c t\u00ednh to\u00e1n c\u00e1c h\u00e0m l\u01b0\u1ee3ng gi\u00e1c sin, cos, tan l\u00e0 thao t\u00e1c c\u01a1 b\u1ea3n nh\u01b0ng kh\u00f4ng \u00edt h\u1ecdc sinh, sinh vi\u00ean g\u1eb7p kh\u00f3 kh\u0103n, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi t\u00ecm c\u00e1ch b\u1ea5m cotang (cot) ho\u1eb7c li\u00ean t\u1ee5c nh\u1eadn k\u1ebft qu\u1ea3 sai d\u00f9 \u0111\u00e3 nh\u1eadp \u0111\u00fang s\u1ed1. Nguy\u00ean nh\u00e2n th\u01b0\u1eddng \u0111\u1ebfn t\u1eeb m\u1ed9t c\u00e0i \u0111\u1eb7t nh\u1ecf [&hellip;]<\/p>\n","protected":false},"author":30,"featured_media":177804,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1375,1460,1377],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.7 (Yoast SEO v20.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch t\u00ednh sin, cos, tan, cot tr\u00ean m\u00e1y t\u00ednh Casio tr\u00e1nh l\u1ed7i sai<\/title>\n<meta name=\"description\" content=\"H\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh sin, cos, tan v\u00e0 cot tr\u00ean m\u00e1y t\u00ednh Casio FX-580VN X, 570VN PLUS chi ti\u1ebft. 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