{"id":2529,"date":"2021-10-14T21:01:17","date_gmt":"2021-10-14T14:01:17","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=2529"},"modified":"2021-10-14T22:11:17","modified_gmt":"2021-10-14T15:11:17","slug":"hoc-toan-6-tai-vietlearn-phan-tich-mot-so-ra-thua-so-nguyen-to","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/hoc-toan-6-tai-vietlearn-phan-tich-mot-so-ra-thua-so-nguyen-to\/","title":{"rendered":"H\u1ecdc To\u00e1n 6 t\u1ea1i Vietlearn: Ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1"},"content":{"rendered":"\n<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p>C\u00f9ng Vietlearn \u00f4n b\u00e0i: Trong b\u00e0i h\u1ecdc tr\u01b0\u1edbc, Vietlearn \u0111\u00e3 c\u00f9ng c\u00e1c b\u00e9 t\u00ecm hi\u1ec3u ki\u1ebfn th\u1ee9c v\u1ec1 B\u00e0i 14 S\u1ed1 nguy\u00ean t\u1ed1, H\u1ee3p s\u1ed1, B\u1ea3ng s\u1ed1 nguy\u00ean t\u1ed1. B\u00ean c\u1ea1nh \u0111\u00f3, Vietlearn \u0111\u00e3 h\u01b0\u1edbng d\u1eabn c\u00e1c b\u00e9 c\u00e1ch gi\u1ea3i b\u00e0i t\u1eadp trong s\u00e1ch gi\u00e1o khoa \u0111\u1ec3 c\u1ee7ng c\u1ed1 l\u1ea1i ki\u1ebfn th\u1ee9c. Trong b\u00e0i 15 ng\u00e0y h\u00f4m nay, c\u00e1c b\u00e9 s\u1ebd ti\u1ebfp \u0111\u01b0\u1ee3c \u0111\u01b0\u1ee3c luy\u1ec7n t\u1eadp v\u1ec1 s\u1ed1 nguy\u00ean t\u1ed1. Tuy nhi\u00ean v\u1edbi m\u1ee9c \u0111\u1ed9 \u1ee9ng d\u1ee5ng cao h\u01a1n \u0111\u00f3 l\u00e0 ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1. V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 vi\u1ebft m\u1ed9t s\u1ed1 d\u01b0\u1edbi d\u1ea1ng t\u00edch c\u00e1c th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1? H\u00e3y c\u00f9ng Vietlearn t\u00ecm hi\u1ec3u ngay sau \u0111\u00e2y.<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 g\u00ec<\/li><\/ol>\n\n\n\n<p>Ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 (2)<\/p>\n\n\n\n<p>V\u00ed d\u1ee5: Vi\u1ebft s\u1ed1 300 d\u01b0\u1edbi d\u1ea1ng m\u1ed9t t\u00edch c\u1ee7a nhi\u1ec1u th\u1eeba s\u1ed1 l\u1edbn h\u01a1n 1 v\u1edbi m\u1ed7i th\u1eeba s\u1ed1 l\u1ea1i l\u00e0m nh\u01b0 v\u1eady (n\u1ebfu c\u00f3 th\u1ec3).<\/p>\n\n\n\n<p>300 = 6 . 50 = 2 . 3 . 2 . 25 = 2 . 3 . 2 . 5 . 5<\/p>\n\n\n\n<p>300 = 3 . 100 = 3 . 10 . 10 = 3 . 2 . 5 . 2 . 5<\/p>\n\n\n\n<p>300 = 3 . 100 = 3 . 4 . 25 = 3 . 2 . 2 . 5 . 5<\/p>\n\n\n\n<p>C\u00e1c s\u1ed1 2 , 3, 5 l\u00e0 c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1. Ta n\u00f3i r\u1eb1ng 300 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch ra c\u00e1c th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1.<\/p>\n\n\n\n<p>Ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 t\u1ef1 nhi\u00ean l\u1edbn h\u01a1n 1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 vi\u1ebft s\u1ed1 \u0111\u00f3 d\u01b0\u1edbi d\u1ea1ng m\u1ed9t t\u00edch c\u00e1c th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1.<\/p>\n\n\n\n<p>Ch\u00fa \u00fd:<\/p>\n\n\n\n<p>a. D\u1ea1ng ph\u00e2n t\u00edch ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 c\u1ee7a m\u1ed7i s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 ch\u00ednh s\u1ed1 \u0111\u00f3<\/p>\n\n\n\n<p>L\u00fd gi\u1ea3i: Theo \u0111\u1ecbnh ngh\u0129a, s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 nh\u1eefng s\u1ed1 ch\u1ec9 c\u00f3 duy nh\u1ea5t 2 \u01b0\u1edbc l\u00e0 1 v\u00e0 ch\u00ednh n\u00f3, do v\u1eady, khi ph\u00e2n t\u00edch s\u1ed1 nguy\u00ean t\u1ed1, ta ch\u1ec9 c\u1ea7n vi\u1ebft ch\u00ednh s\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<p>37 = 1. 37<\/p>\n\n\n\n<p>149 = 1 . 149<\/p>\n\n\n\n<p>853 = 1. 853<\/p>\n\n\n\n<p>b. M\u1ecdi h\u1ee3p s\u1ed1 \u0111\u1ec1u ph\u00e2n t\u00edch \u0111\u01b0\u1ee3c ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1.<\/p>\n\n\n\n<p>L\u00fd gi\u1ea3i: C\u00e1c h\u1ee3p s\u1ed1 \u0111\u1ec1u l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p nh\u00e2n c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1 v\u1edbi nhau.<\/p>\n\n\n\n<p>68 = 2\u00b2 . 17<\/p>\n\n\n\n<p>306 = 2 . 3\u00b2. 17<\/p>\n\n\n\n<p>982 = 2 . 491<\/p>\n\n\n\n<p>C\u00e1ch ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>C\u00e1ch ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>Ta c\u00f3 th\u1ec3 ph\u00e2n t\u00edch s\u1ed1 300 ra th\u1eeba s\u1ed1 \u201ctheo c\u1ed9t d\u1ecdc\u201d:<\/p>\n\n\n\n<p>Do \u0111\u00f3 300 = 2 . 2 . 3 . 5 . 5<\/p>\n\n\n\n<p>Vi\u1ebft g\u1ecdn b\u1eb1ng l\u0169y th\u1eeba ta \u0111\u01b0\u1ee3c: 2\u00b2 . 3 . 5\u00b2<\/p>\n\n\n\n<p>(Trong c\u00e1ch ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1, ta th\u01b0\u1eddng vi\u1ebft c\u00e1c \u01b0\u1edbc nguy\u00ean t\u1ed1 theo th\u1ee9 t\u1ef1 t\u1eeb nh\u1ecf \u0111\u1ebfn l\u1edbn).<\/p>\n\n\n\n<p>Nh\u1eadn x\u00e9t:<\/p>\n\n\n\n<p>D\u00f9 ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 b\u1eb1ng c\u00e1ch n\u00e0o th\u00ec cu\u1ed1i c\u00f9ng ta c\u0169ng \u0111\u01b0\u1ee3c c\u00f9ng m\u1ed9t k\u1ebft qu\u1ea3.<\/p>\n\n\n\n<p>L\u00fd gi\u1ea3i: T\u00edch c\u00e1c th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 c\u1ee7a m\u1ed9t s\u1ed1 kh\u00f4ng thay \u0111\u1ed5i, nguy\u00ean nh\u00e2n d\u1eabn t\u1edbi vi\u1ec7c c\u00f3 nhi\u1ec1u c\u00e1ch ph\u00e2n t\u00edch th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 v\u00ec c\u00e1c h\u1ee3p s\u1ed1 c\u00f3 nhi\u1ec1u \u01b0\u1edbc kh\u00e1c nhau.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 minh h\u1ecda:<\/p>\n\n\n\n<p>VD1: 400 = 4 . 100 = 2 . 2 . 50 . 2 = 2 . 2 . 25 . 2 . 2 = 2 . 2 . 5 . 5 . 2 . 2 = 2\u2074 . 5\u00b2<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>            = 50 . 8 = 25 . 2 . 4 . 2 = 5 . 5 . 2 . 2 . 2 . 2 =  2\u2074 . 5\u00b2\n\n            = 20 . 20 = 4 . 5 . 4 . 5 = 2 . 2 . 5 . 2 . 2 . 5 = 2\u2074 . 5\u00b2\n\n            = 16 . 25 = 4 . 4 . 5 . 5 = 2 . 2 . 2 . 2 . 5 . 5 = 2\u2074 . 5\u00b2<\/code><\/pre>\n\n\n\n<p>VD2: 1575 = 25 . 63 = 5 . 5 . 3 . 21 = 5 . 5 . 3 . 3 . 7 = 3\u00b2 . 5\u00b2 . 7<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>              = 15 . 105 = 3 . 5 . 3. 35 = 3 . 5 . 3 . 5 .7 = 3\u00b2 . 5\u00b2 . 7\n\n              = 21 . 75 = 3 . 7 . 3 . 25 = 3 . 7 . 3 . 5 . 5 = 3\u00b2 . 5\u00b2 . 7\n\n              = 45 . 35 = 3 . 15 . 5 . 7 = 3 . 3 . 5 . 5 . 7 = 3\u00b2 . 5\u00b2 . 7<\/code><\/pre>\n\n\n\n<p>C\u00e2u h\u1ecfi: Ph\u00e2n t\u00edch s\u1ed1 420 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>Ta c\u00f3 420 = 2 . 210<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>             = 2 . 2 . 105\n\n             = 2 . 2 . 5 . 21 \n\n             = 2 . 2 . 5 . 3 . 7 \n\n             = 2\u00b2 . 3 . 5 .7<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\"><li>C\u00f3 th\u1ec3 b\u1ea1n ch\u01b0a bi\u1ebft v\u1ec1 s\u1ed1 nguy\u00ean t\u1ed1<\/li><\/ol>\n\n\n\n<p>C\u00f3 v\u00f4 s\u1ed1 s\u1ed1 nguy\u00ean t\u1ed1. V\u00e0o kho\u1ea3ng nh\u1eefng n\u0103m 300 tr\u01b0\u1edbc C\u00f4ng nguy\u00ean, Euclid \u2013 nh\u00e0 to\u00e1n h\u1ecdc Hy L\u1ea1p n\u1ed5i ti\u1ebfng \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c r\u1eb1ng c\u00f3 v\u00f4 s\u1ed1 s\u1ed1 nguy\u00ean t\u1ed1. Tuy nhi\u00ean, th\u1ef1c t\u1ebf ng\u01b0\u1eddi ta c\u0169ng kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c s\u1ed1 nguy\u00ean t\u1ed1 v\u00e0 h\u1ee3p s\u1ed1 b\u1eb1ng m\u1ed9t c\u00f4ng th\u1ee9c n\u00e0o. M\u1eb7c d\u00f9 v\u1eady, s\u1ef1 ph\u00e2n ph\u1ed1i c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1 trong t\u1eadp h\u1ee3p s\u1ed1 t\u1ef1 nhi\u00ean ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 m\u00f4 h\u00ecnh h\u00f3a theo th\u1ed1ng k\u00ea. Trong \u0111\u00f3, ng\u01b0\u1eddi ta \u0111\u00e3 t\u00ecm ra \u0111\u1ecbnh l\u00fd s\u1ed1 nguy\u00ean t\u1ed1 v\u00e0o cu\u1ed1i th\u1ebf k\u1ef7 th\u1ee9 19.<\/p>\n\n\n\n<p>Nh\u00e0 to\u00e1n h\u1ecdc Euclid<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>T\u1ea3i b\u1ed9 t\u00e0i li\u1ec7u h\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c v\u00e0 \u0111\u1ec1 thi m\u00f4n To\u00e1n tuy\u1ec7t hay<\/p><\/blockquote>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\"><li>B\u00e0i t\u1eadp v\u1ec1 ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/li><\/ol>\n\n\n\n<p>B\u00e0i t\u1eadp 125:<\/p>\n\n\n\n<p>B\u00e0i 125 s\u00e1ch gi\u00e1o khoa<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>60 = 2\u00b2 . 3 . 5<\/p>\n\n\n\n<p>84 = 2\u00b2 . 3 . 7<\/p>\n\n\n\n<p>285 = 3 . 5 . 19<\/p>\n\n\n\n<p>1035 = 3\u00b2 . 5 . 23<\/p>\n\n\n\n<p>400 = 2\u2074 . 5\u00b2<\/p>\n\n\n\n<p>1 000 000 = 2\u2076. 5\u2076<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp 126:<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp 126 s\u00e1ch gi\u00e1o khoa<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>An l\u00e0m nh\u01b0 v\u1eady l\u00e0 ch\u01b0a \u0111\u00fang v\u00ec:<\/p>\n\n\n\n<p>+\u1ede ph\u00e9p t\u00ednh th\u1ee9 nh\u1ea5t, s\u1ed1 4 v\u1eabn c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c ph\u00e2n t\u00edch ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>S\u1eeda l\u1ea1i: 120 = 2\u00b3 . 3 . 5<\/p>\n\n\n\n<p>+\u1ede ph\u00e9p t\u00ednh th\u1ee9 2, s\u1ed1 51 v\u1eabn c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c ph\u00e2n t\u00edch ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>S\u1eeda l\u1ea1i: 306 = 2. 3\u00b2. 17<\/p>\n\n\n\n<p>+\u1ede ph\u00e9p t\u00ednh th\u1ee9 3, 9\u00b2 ch\u01b0a ph\u1ea3i d\u1ea1ng th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>S\u1eeda l\u1ea1i: 567 = 3\u2074 . 7<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp 127:<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp 127 s\u00e1ch gi\u00e1o khoa<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>Ta c\u00f3 225 = 3\u00b2 . 5\u00b2<\/p>\n\n\n\n<p>225 chia h\u1ebft cho c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 3, 5<\/p>\n\n\n\n<p>Ta c\u00f3 1800 = 2\u00b3. 3\u00b2 . 5\u00b2<\/p>\n\n\n\n<p>1800 chia h\u1ebft cho c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 2, 3, 5<\/p>\n\n\n\n<p>Ta c\u00f3 1050 = 2 . 3 . 5\u00b2 . 7<\/p>\n\n\n\n<p>1050 chia h\u1ebft cho c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 2, ,3 ,5 ,7<\/p>\n\n\n\n<p>Ta c\u00f3 3060 = 2\u00b2 . 3\u00b2 . 5 . 17<\/p>\n\n\n\n<p>3060 chia h\u1ebft cho c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 2, 3, ,5, 7<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp 128:<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp 128 s\u00e1ch gi\u00e1o khoa<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>Ta c\u00f3: a = 2\u00b3 . 5\u00b2 . 11 = 2 . 2 . 2 . 5 . 5 . 11<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>      4   = 2 . 2\n\n      8   = 2 . 2 . 2\n\n      16 = 2 . 2 . 2 . 2\n\n      11 = 11\n\n      20 = 2 . 2 . 5<\/code><\/pre>\n\n\n\n<p>D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch tr\u00ean ta \u0111\u01b0\u1ee3c 4, 8, 11, 20 l\u00e0 \u01b0\u1edbc c\u1ee7a a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>                                                             11 kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0\u1edbc c\u1ee7a a<\/code><\/pre>\n\n\n\n<p>T\u1ea1i b\u00e0i h\u1ecdc n\u00e0y, TEKY \u0111\u00e3 c\u00f9ng c\u00e1c con t\u00ecm hi\u1ec3u c\u00e1ch ph\u00e2n t\u00edch m\u1ed9t s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1. Ki\u1ebfn th\u1ee9c quan tr\u1ecdng m\u00e0 c\u00e1c con c\u1ea7n nh\u1edb:<\/p>\n\n\n\n<p>+Ph\u00e2n t\u00edch 1 s\u1ed1 l\u1edbn h\u01a1n 1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 l\u00e0 vi\u1ebft s\u1ed1 \u0111\u00f3 d\u01b0\u1edbi d\u1ea1ng t\u00edch c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1.<\/p>\n\n\n\n<p>+M\u1ecdi h\u1ee3p s\u1ed1 \u0111\u1ec1u c\u00f3 th\u1ec3 ph\u00e2n t\u00edch ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1<\/p>\n\n\n\n<p>+S\u1ed1 nguy\u00ean t\u1ed1 ch\u1ec9 c\u00f3 m\u1ed9t d\u1ea1ng ph\u00e2n t\u00edch duy nh\u1ea5t l\u00e0 ch\u00ednh n\u00f3<\/p>\n\n\n\n<p>Kho t\u00e0i li\u1ec7u <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> Mi\u1ec5n Ph\u00ed \u2013 Vietlearn<\/p>\n\n\n\n<p>Vietlearn hy v\u1ecdng c\u00e1c con c\u00f3 th\u1ec3 n\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c b\u00e0i h\u1ecdc ng\u00e0y h\u00f4m nay. \u0110\u1eb7c bi\u1ec7t, t\u1ea1i Vietlearn c\u00f3 r\u1ea5t nhi\u1ec1u kh\u00f3a h\u1ecdc d\u00e0nh cho <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> t\u1eeb l\u1edbp 1 \u0111\u1ebfn l\u1edbp 12. \u0110\u0103ng k\u00fd h\u1ecdc th\u1eed ngay n\u00e0o!<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Ki\u00ea\u0301n th\u01b0\u0301c v\u00ea\u0300 t\u00e2\u0323p h\u01a1\u0323p s\u00f4\u0301 nguy\u00ean \u2013 Ho\u0323c Toa\u0301n cu\u0300ng T<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn C\u00f9ng Vietlearn \u00f4n b\u00e0i: Trong b\u00e0i h\u1ecdc tr\u01b0\u1edbc, Vietlearn \u0111\u00e3 c\u00f9ng c\u00e1c b\u00e9 t\u00ecm hi\u1ec3u ki\u1ebfn th\u1ee9c v\u1ec1 B\u00e0i 14 S\u1ed1 nguy\u00ean t\u1ed1, H\u1ee3p s\u1ed1, B\u1ea3ng s\u1ed1 nguy\u00ean t\u1ed1. B\u00ean c\u1ea1nh \u0111\u00f3, Vietlearn \u0111\u00e3 h\u01b0\u1edbng d\u1eabn c\u00e1c b\u00e9 c\u00e1ch gi\u1ea3i b\u00e0i t\u1eadp trong s\u00e1ch gi\u00e1o khoa \u0111\u1ec3 c\u1ee7ng c\u1ed1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[9,4],"tags":[],"class_list":["post-2529","post","type-post","status-publish","format-standard","hentry","category-toan-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=2529"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2529\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=2529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=2529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=2529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}