<\/span>1. Soi c\u1ea7u tam gi\u00e1c theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, gi\u1ea3i nh\u1ea5t v\u00e0 gi\u1ea3i s\u00e1u<\/h5>\n\u0110\u00e2y l\u00e0 c\u00e1ch soi c\u1ea7u l\u00f4 tam gi\u00e1c \u0111\u01b0\u1ee3c ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay, tuy h\u01a1i ph\u1ee9c t\u1ea1p nh\u01b0ng \u0111\u1ed9 ch\u00ednh x\u00e1c mang l\u1ea1i kh\u00e1 cao, anh em c\u00f3 th\u1ec3 theo d\u00f5i v\u00e0 \u00e1p d\u1ee5ng c\u00e1c tr\u00ecnh t\u1ef1 nh\u01b0 sau:<\/p>\n
B\u01b0\u1edbc 1: Quan s\u00e1t b\u1ea3ng k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 tr\u00ean, anh em h\u00e3y \u0111\u00e1nh d\u1ea5u l\u1ea1i 3 v\u1ecb tr\u00ed c\u1ea7n soi :<\/p>\n
Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t : 98819<\/p>\n
Gi\u1ea3i nh\u1ea5t : 44179<\/p>\n
Gi\u1ea3i s\u00e1u : 130<\/p>\n
B\u01b0\u1edbc 2: Sau khi li\u1ec7t k\u00ea \u0111\u01b0\u1ee3c s\u1ed1 li\u1ec7u c\u1ee7a 3 gi\u1ea3i tr\u00ean, anh em ti\u1ebfp t\u1ee5c l\u1ef1a ch\u1ecdn l\u1ea5y con s\u1ed1 kh\u00e1c bi\u1ec7t nh\u1ea5t. Lo\u1ea1i b\u1ecf s\u1ed1 ch\u1eb5n nh\u01b0 0, 4, 6,8 v\u00e0 s\u1ed1 l\u1eb7p l\u1ea1i nhi\u1ec1u l\u1ea7n, c\u1ee5 th\u1ec3:<\/p>\n
Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t 98819 c\u00f3 s\u1ed1 88, 99 l\u1eb7p l\u1ea1i 2 l\u1ea7n th\u00ec ta b\u1ecf. L\u1ea5y \u0111\u01b0\u1ee3c s\u1ed1 1<\/p>\n
Gi\u1ea3i nh\u1ea5t 44179 c\u00f3 s\u1ed1 44 l\u1eb7p l\u1ea1i v\u00e0 9 tr\u00f9ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, ta c\u0169ng b\u1ecf. L\u1ea5y \u0111\u01b0\u1ee3c s\u1ed1 7.<\/p>\n
Gi\u1ea3i s\u00e1u 130 c\u00f3 s\u1ed1 1 tr\u00f9ng v\u1edbi gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, s\u1ed1 0 ch\u1eb5n ta c\u0169ng b\u1ecf. L\u1ea5y \u0111\u01b0\u1ee3c s\u1ed1 3.<\/p>\n
Theo k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch tr\u00ean anh em thu \u0111\u01b0\u1ee3c c\u1eb7p b\u1ea1ch th\u1ee7 l\u00e0 37 \u2013 73 r\u1ea5t \u0111\u1eb9p v\u00e0 v\u00f4 c\u00f9ng s\u00e1ng c\u1eeda v\u1ec1.<\/p>\n
<\/span>2. Soi c\u1ea7u tam gi\u00e1c theo t\u00e2m gi\u1ea3i nh\u1ea5t<\/h5>\nPh\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 tam gi\u00e1c chu\u1ea9n n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n v\u00e0 cho ra k\u1ebft qu\u1ea3 nhanh ch\u00f3ng h\u01a1n.<\/p>\n
Anh em ch\u1ec9 c\u1ea7n \u00e1p h\u00ecnh tam gi\u00e1c chu\u1ea9n v\u00e0o b\u1ea3ng KQXS sao cho 3 \u0111\u1ec9nh tam gi\u00e1c t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00e2m gi\u1eefa gi\u1ea3i nh\u1ea5t, s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i 3 th\u1ee9 nh\u1ea5t (G3.1) v\u00e0 s\u1ed1 \u0111u\u00f4i gi\u1ea3i 3 th\u1ee9 3 (G3.3)<\/p>\n
Theo quy t\u1eafc ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, anh em l\u1ea5y con s\u1ed1 \u1edf t\u00e2m c\u1ee7a gi\u1ea3i nh\u1ea5t (G1) l\u00e0m con \u0111\u1ea7u c\u1ee7a con b\u1ea1ch th\u1ee7, k\u1ebf ti\u1ebfp gh\u00e9p chung v\u1edbi con s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i G3.1 v\u00e0 \u0111u\u00f4i c\u1ee7a gi\u1ea3i G3.3.<\/p>\n
T\u00f4i s\u1ebd l\u1ea5y v\u00ed d\u1ee5 minh ho\u1ea1 cho anh em d\u1ec5 hi\u1ec3u. Quan s\u00e1t h\u00ecnh \u1ea3nh tr\u00ean \u0111\u00e2y, anh em th\u1ea5y t\u00e2m c\u1ee7a gi\u1ea3i nh\u1ea5t (G1) l\u00e0 s\u1ed1 1, sau \u0111\u00f3 gh\u00e9p 2 \u0111\u1ec9nh tr\u00e1i ph\u1ea3i c\u00f2n l\u1ea1i c\u1ee7a tam gi\u00e1c l\u00e0 \u0111\u1ea7u G3.1 v\u00e0 \u0111u\u00f4i G3.3 ta s\u1ebd \u0111\u01b0\u1ee3c c\u1eb7p b\u1ea1ch th\u1ee7 16 \u2013 11.<\/p>\n
<\/p>\n
<\/span>Kinh nghi\u1ec7m \u00e1p d\u1ee5ng soi c\u1ea7u tam gi\u00e1c v\u00e0o th\u1ef1c t\u1ebf<\/h4>\nNh\u01b0 v\u1eady \u0111\u00e3 chia s\u1ebb xong b\u00ed quy\u1ebft soi c\u1ea7u tam gi\u00e1c ma thu\u1eadt c\u00f3 t\u1ef7 l\u1ec7 ch\u00ednh x\u00e1c cao nh\u1ea5t cho anh em. Tuy nhi\u00ean th\u1ef1c t\u1ebf trong vi\u1ec7c soi c\u1ea7u th\u00ec kh\u00f4ng c\u00f3 b\u1ea5t c\u1ee9 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p n\u00e0o c\u00f3 t\u00ednh tuy\u1ec7t \u0111\u1ed1i ch\u00ednh x\u00e1c 100% c\u1ea3.<\/p>\n
V\u1ea5n \u0111\u1ec1 anh em c\u1ea7n ph\u1ea3i bi\u1ebft l\u00e0 linh ho\u1ea1t, nh\u1ea1y b\u00e9n tu\u1ef3 c\u00e1c t\u00ednh hu\u1ed1ng ph\u1ed1i h\u1ee3p c\u00f9ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 kh\u00e1c nhau nh\u01b0 : soi c\u1ea7u l\u00f4 khan, soi l\u00f4 h\u00ecnh qu\u1ea3 tr\u00e1m, c\u00e1ch t\u00ednh l\u00f4 theo ng\u00e0y,\u2026.<\/p>\n
Nghe th\u00ec c\u00f3 v\u1ebb ph\u1ee9c t\u1ea1p, nh\u01b0ng t\u1eeb vi\u1ec7c ph\u1ed1i h\u1ee3p nhi\u1ec1u c\u00e1ch kh\u00e1c nhau anh em s\u1ebd quen d\u1ea7n, c\u00f3 nhi\u1ec1u kinh nghi\u1ec7m h\u01a1n, t\u1eeb \u0111\u00f3 t\u1ed1c \u0111\u1ed9 soi c\u1ea7u nhanh h\u01a1n, kh\u1ea3 n\u0103ng b\u1eaft nh\u1eefng con b\u1ea1ch th\u1ee7 c\u00f3 t\u1ef7 l\u1ec7 th\u1eafng cao h\u01a1n.<\/p>\n
Hy v\u1ecdng anh em c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng soi c\u1ea7u l\u00f4 tam gi\u00e1c k\u1ebft h\u1ee3p c\u00f9ng nhi\u1ec1u c\u00e1ch soi c\u1ea7u kh\u00e1c nhau sao cho ph\u00f9 h\u1ee3p nh\u1ea5t, \u0111\u1ec3 s\u1edbm g\u1eb7t h\u00e1i nhi\u1ec1u th\u00e0nh c\u00f4ng, \u0111\u00e1nh \u0111\u00e2u th\u1eafng \u0111\u00f3.<\/p>\n