{"id":10701,"date":"2024-03-10T12:10:33","date_gmt":"2024-03-10T12:10:33","guid":{"rendered":"https:\/\/soicau4004.minhngocxoso.com\/?p=10701"},"modified":"2024-03-10T12:10:33","modified_gmt":"2024-03-10T12:10:33","slug":"bi-kip-chon-so-de-thong-minh","status":"publish","type":"post","link":"https:\/\/laybachthulo.com\/bi-kip-chon-so-de-thong-minh\/","title":{"rendered":"b\u00ed k\u00edp ch\u1ecdn s\u1ed1 \u0111\u1ec1 th\u00f4ng minh"},"content":{"rendered":"
<\/p>\n\n\n
Nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn vi\u1ec7c \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ec3 gi\u1ea3i t\u1ecfa tinh th\u1ea7n sau ng\u00e0y l\u00e0m vi\u1ec7c m\u1ec7t m\u1ecfi. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft c\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1<\/strong> hi\u1ec7u qu\u1ea3 \u0111\u1ec3 r\u01b0\u1edbc t\u00e0i l\u1ed9c v\u1ec1 nh\u00e0. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd chia s\u1ebb c\u00e1c b\u00ed quy\u1ebft c\u0169ng nh\u01b0 nh\u1eefng l\u01b0u \u00fd tr\u01b0\u1edbc khi tham gia tr\u00f2 ch\u01a1i may r\u1ee7i n\u00e0y.<\/p>\n\n\n\n Ch\u01a1i l\u00f4 \u0111\u1ec1 ch\u1ee7 y\u1ebfu l\u00e0 d\u1ef1a v\u00e0o s\u1ef1 may m\u1eafn nh\u01b0ng b\u1ea1n c\u0169ng n\u00ean t\u00ecm hi\u1ec3u qua nh\u1eefng c\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 t\u0103ng cao t\u1ef7 l\u1ec7 th\u1eafng h\u01a1n. <\/p>\n\n\n\n B\u1ea1n s\u1ebd x\u00e9t k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft trong ng\u00e0y \u0111\u1ea7u ti\u00ean \u0111\u1ec3 \u0111\u00e1nh cho h\u00f4m th\u1ee9 3. Ch\u01a1i l\u00f4 \u0111\u1ec1 c\u0169ng c\u00f3 li\u00ean quan \u00edt nhi\u1ec1u \u0111\u1ebfn m\u1ed9t s\u1ed1 kh\u00eda c\u1ea1nh c\u1ee7a to\u00e1n h\u1ecdc. Ng\u01b0\u1eddi ch\u01a1i ch\u1ec9 c\u1ea7n bi\u1ebft v\u1eadn d\u1ee5ng m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd th\u00ec c\u01a1 h\u1ed9i th\u1eafng \u0111\u1ec1 s\u1ebd cao h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n X\u00e1c su\u1ea5t c\u00f3 th\u1ec3 tr\u00fang \u0111\u01b0\u1ee3c m\u1ed9t con trong 27 l\u00f4 bao g\u1ed3m 100 s\u1ed1 l\u00e0:<\/p>\n\n\n\n B\u1ea1n ch\u1ec9 c\u1ea7n \u00e1p d\u1ee5ng t\u1ed1t c\u00e1c ph\u00e9p t\u00ednh tr\u00ean th\u00ec s\u1ebd th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c nh\u1eefng con s\u1ed1 hay ra \u0111\u1ec3 c\u00e2n b\u1eb1ng ti\u1ec1n c\u01b0\u1ee3c. Qua \u0111\u00f3, ng\u01b0\u1eddi ch\u01a1i s\u1ebd bi\u1ebft \u0111\u01b0\u1ee3c x\u00e1c su\u1ea5t tr\u00fang v\u00e0 thu v\u1ec1 bao nhi\u00eau l\u00e3i.<\/p>\n\n\n <\/p>\n\n\n \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch t\u00ednh \u0111i\u1ec3m l\u00f4 \u0111\u1ec1 h\u1ebft s\u1ee9c \u0111\u01a1n gi\u1ea3n. Cho d\u00f9 ch\u1ec9 m\u1edbi tham gia ch\u01a1i \u0111\u00e1nh \u0111\u1ec1 nh\u01b0ng b\u1ea1n v\u1eabn d\u1ec5 d\u00e0ng hi\u1ec3u \u0111\u01b0\u1ee3c. N\u1ebfu bi\u1ebft \u00e1p d\u1ee5ng m\u1ed9t c\u00e1ch tri\u1ec7t \u0111\u1ec3 th\u00ec s\u1ebd mang nhi\u1ec1u ti\u1ec1n th\u1eafng v\u1ec1 cho b\u1ea1n. Ng\u01b0\u1eddi ch\u01a1i s\u1ebd l\u1ea5y 5 s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ed9ng l\u1ea1i v\u1edbi nhau v\u00e0 nu\u00f4i l\u00f4 trong v\u00f2ng m\u1ed9t tu\u1ea7n li\u00ean ti\u1ebfp.<\/p>\n\n\n\n VD: T\u1ed5ng 5 s\u1ed1 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y 02\/12\/2024 l\u00e0 63748 = 28. B\u1ea1n s\u1ebd l\u1ea5y ch\u00ednh con s\u1ed1 n\u00e0y \u0111\u1eb7t c\u01b0\u1ee3c v\u00e0o ng\u00e0y 7\/12\/2024. Tr\u01b0\u1eddng h\u1ee3p n\u00e0y c\u00f3 th\u1ec3 nu\u00f4i l\u00f4 trong 7 ng\u00e0y li\u00ean ti\u1ebfp. N\u1ebfu qu\u00e1 th\u1eddi gian \u0111\u00f3 ng\u01b0\u1eddi ch\u01a1i n\u00ean \u0111\u1ed5i sang t\u1ed5ng kh\u00e1c. Th\u00f4ng th\u01b0\u1eddng th\u00ec t\u1eeb 2 \u0111\u1ebfn 5 ng\u00e0y s\u1ebd x\u1ed5 1 l\u1ea7n.<\/p>\n\n\n\n Ngo\u00e0i nh\u1eefng c\u00e1ch tr\u00ean th\u00ec b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng theo ng\u0169 h\u00e0nh \u0111\u1ec3 ch\u1ecdn ra con s\u1ed1 may m\u1eafn cho m\u00ecnh. Ng\u0169 h\u00e0nh bao g\u1ed3m Kim, M\u1ed9c, Th\u1ee7y, H\u1ecfa v\u00e0 Th\u1ed5. M\u1ed7i m\u1ec7nh l\u1ea1i \u0111\u1ea1i di\u1ec7n cho c\u00e1c con s\u1ed1 ri\u00eang bi\u1ec7t. C\u1ee5 th\u1ec3 l\u00e0:<\/p>\n\n\n\n B\u00ean c\u1ea1nh \u0111\u00f3, khi chi\u1ebfu theo b\u00f3ng ta c\u00f3 k\u1ebft qu\u1ea3 nh\u01b0 sau:<\/p>\n\n\n\n Cu\u1ed1i c\u00f9ng, ta thu \u0111\u01b0\u1ee3c: 2 => 5 => 3 => 1 => 4 => 2 v\u00e0 7 => 0 => 8 => 6 => 9 => 7<\/p>\n\n\n\n Tr\u01b0\u1edbc h\u1ebft, ta c\u00f3 quy \u01b0\u1edbc nh\u01b0 sau:<\/p>\n\n\n\n V\u00ed d\u1ee5: <\/em>MN = 35 (3 # 5) CD = 39 (3 # 9, C=M)<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 \u0111\u1eb7t c\u01b0\u1ee3c qu\u00e1 nhi\u1ec1u l\u1ea7n nh\u01b0ng l\u1ea1i tr\u00fang r\u1ea5t \u00edt v\u00e0 l\u00e3i thu v\u1ec1 kh\u00f4ng \u0111\u01b0\u1ee3c bao nhi\u00eau. H\u00e3y tham kh\u1ea3o ngay nh\u1eefng c\u00e1ch \u0111\u00e1nh \u0111\u1ec1 hay nh\u1ea5t d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n\n\n\n L\u00e0m sao \u0111\u1ec3 \u0111\u00e1nh \u0111\u1ec1 tr\u00fang l\u1edbn, nh\u1eadn ti\u1ec1n li\u1ec1n tay? Mu\u1ed1n \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3 th\u00ec b\u1ea1n n\u00ean t\u00ecm hi\u1ec3u ngay m\u1ed9t v\u00e0i g\u1ee3i \u00fd v\u1ec1 c\u00e1ch \u0111\u00e1nh \u0111\u00e1nh \u0111\u1ec1 3 c\u00e0ng ph\u1ed5 bi\u1ebfn \u1edf ph\u00eda B\u1eafc. Ch\u1ec9 c\u1ea7n b\u1ecf ra ch\u00fat v\u1ed1n nh\u01b0ng l\u1ea1i thu \u0111\u01b0\u1ee3c l\u1edbn.<\/p>\n\n\n\n Ad s\u1ebd gi\u1edbi thi\u1ec7u t\u1edbi c\u00e1c b\u1ea1n kinh nghi\u1ec7m nu\u00f4i l\u00f4 \u0111\u1ec1 mang l\u1ea1i hi\u1ec7u qu\u1ea3 t\u1eeb nh\u1eefng cao th\u1ee7 \u0111\u00e1nh \u0111\u1ec1 chuy\u00ean nghi\u1ec7p:<\/p>\n\n\n\n \u0110\u1ec3 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c c\u00e1ch n\u00e0y th\u00ec b\u1ea1n c\u1ea7n l\u01b0u \u00fd r\u1eb1ng d\u00e0n \u0111\u1ec1 ch\u1eb5n l\u1ebb g\u1ed3m c\u00f3 25 con. Trong \u0111\u00f3, s\u1ed1 ch\u1eb5n l\u00e0 h\u00e0ng ch\u1ee5c, c\u00f2n h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 l\u1ebb. C\u1ee5 th\u1ec3 l\u00e0: 01, 03, 05, 07, 09, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89<\/p>\n\n\n\n \u0110\u1ec3 c\u00f3 th\u1ec3 gi\u00e0nh \u0111\u01b0\u1ee3c chi\u1ebfn th\u1eafng khi tham gia tr\u00f2 ch\u01a1i may r\u1ee7i n\u00e0y th\u00ec m\u1ecdi ng\u01b0\u1eddi n\u00ean bi\u1ebft c\u00e1ch suy lu\u1eadn l\u00f4 \u0111\u1ec1 sao cho ch\u00ednh x\u00e1c nh\u1ea5t.<\/p>\n\n\n\n H\u00e3y lu\u00f4n ghi nh\u1edb r\u1eb1ng v\u1ed1n lu\u00f4n l\u00e0 h\u1eefu h\u1ea1n v\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 bao m\u1ed9t l\u00f4 v\u00f4 th\u1eddi h\u1ea1n. Ch\u00ednh v\u1ec1 th\u1ebf ng\u01b0\u1eddi ch\u01a1i n\u00ean tham kh\u1ea3o t\u01b0 v\u1ea5n l\u00f4 \u0111\u1ec1 t\u1eeb c\u00e1c chuy\u00ean gia tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh tham gia hay kh\u00f4ng. B\u1ea1n c\u1ea7n xem x\u00e9t x\u00e1c su\u1ea5t tr\u00fang s\u1ed1 l\u00f4 nu\u00f4i trong 3 ng\u00e0y, 5 ng\u00e0y, 7 ng\u00e0y \u0111\u1ec3 gi\u1ea3m chi ph\u00ed \u0111\u1ea7u t\u01b0 v\u00e0 t\u0103ng ti\u1ec1n l\u00e3i nh\u00e9!<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 c\u00e1ch lu\u1eadn l\u00f4 \u0111\u1ec1 truy\u1ec1n th\u1ed1ng n\u00e0y d\u1ef1a tr\u00ean th\u00f4ng tin v\u1ec1 th\u1ee9 t\u1ef1 v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u00e1c con gi\u00e1p. 12 con gi\u00e1p lu\u00e2n phi\u00ean theo chu k\u1ef3 ng\u00e0y, th\u00e1ng v\u00e0 \u1ee9ng v\u1edbi nh\u1eefng con s\u1ed1 c\u1ee5 th\u1ec3 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n\n\n\n N\u1ebfu ng\u01b0\u1eddi ch\u01a1i \u0111\u1ec3 \u00fd s\u1ebd th\u1ea5y T\u00fd, D\u1ea7n, Th\u00ecn, Ng\u1ecd, Th\u00e2n, Tu\u1ea5t th\u01b0\u1eddng mang d\u00e3y s\u1ed1 ch\u1eafn. C\u00e1c con gi\u00e1p c\u00f2n l\u1ea1i s\u1ebd mang d\u00e3y s\u1ed1 l\u1ebb. S\u1eed d\u1ee5ng c\u00e1ch n\u00e0y s\u1ebd gi\u00fap b\u1ea1n t\u0103ng kh\u1ea3 n\u0103ng chi\u1ebfn th\u1eafng gi\u1ea3i h\u00f4m \u0111\u00f3 h\u01a1n.<\/p>\n\n\n\n M\u1ed7i con v\u1eadt \u0111\u1ec1u t\u01b0\u1ee3ng tr\u01b0ng cho m\u1ed9t con s\u1ed1 n\u00e0o \u0111\u00f3. \u0110\u00e2y l\u00e0 c\u00e1ch suy lu\u1eadn l\u00f4 \u0111\u1ec1 kh\u00e1 \u0111\u01a1n gi\u1ea3n v\u00e0 t\u00f9y thu\u1ed9c v\u00e0o may m\u1eafn c\u1ee7a t\u1eebng ng\u01b0\u1eddi. C\u1ee5 th\u1ec3 l\u00e0:<\/p>\n\n\n\n B\u1ea1n kh\u00f4ng ch\u1ec9 y\u00eau th\u00edch vi\u1ec7c \u0111\u00e1nh l\u00f4 \u0111\u1ec1 m\u00e0 c\u00f2n c\u00f3 s\u1edf th\u00edch \u0111\u1ecdc s\u00e1ch. V\u1eady th\u00ec \u201cC\u01a1 s\u1edf l\u00fd thuy\u1ebft chung v\u1ec1 l\u00f4 \u0111\u1ec1\u201d l\u00e0 cu\u1ed1n s\u00e1ch th\u00fa v\u1ecb d\u00e0nh cho b\u1ea1n. N\u00f3 t\u1ed5ng h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c b\u00ed k\u00edp v\u00e0 l\u00fd thuy\u1ebft chung v\u1ec1 l\u00f4 \u0111\u1ec1 h\u1ecdc m\u00e0 ng\u01b0\u1eddi ch\u01a1i n\u00ean tham kh\u1ea3o. H\u00e3y th\u1eed \u0111\u1ecdc v\u00e0 r\u00fat ra nh\u1eefng kinh nghi\u1ec7m \u0111\u00e1nh \u0111\u1ec1 cho ri\u00eang m\u00ecnh.<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 bi\u1ebft c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 sao cho hi\u1ec7u qu\u1ea3 ch\u01b0a? H\u00e3y tham kh\u1ea3o nh\u1eefng c\u00e1ch soi s\u1ed1 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 sau \u0111\u1ec3 r\u00fat ra kinh nghi\u1ec7m cho b\u1ea3n th\u00e2n.<\/p>\n\n\n\n Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 soi l\u00f4 k\u00e9p b\u1eb1ng gi\u1ea3i \u0111\u1eb7t bi\u1ec7t. N\u1ebfu gi\u1ea3i \u0111\u1ed9c \u0111\u1eafc v\u1ec1 c\u00f3 hai ch\u1eef s\u1ed1 li\u1ec1n nhau th\u00ec l\u1ea5y \u0111\u00f3 l\u00e0m l\u00f4 k\u00e9p \u0111\u1ec3 nu\u00f4i trong v\u00f2ng 3 ng\u00e0y. V\u00ed d\u1ee5: Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1ec1 05537 c\u00f3 55 g\u1ea7n nhau. M\u1ecdi ng\u01b0\u1eddi nu\u00f4i l\u00f4 k\u00e9p \u0111\u00f3 trong v\u00f2ng 3 ng\u00e0y.<\/p>\n\n\n\n Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 soi l\u00f4 k\u00e9p \u1edf gi\u1ea3i 7. N\u1ebfu trong gi\u1ea3i 7 c\u00f3 \u0111\u1ea7u v\u00e0 \u0111u\u00f4i tr\u00f9ng nhau th\u00ec kh\u1ea3 n\u0103ng l\u1edbn l\u00e0 l\u00f4 k\u00e9p s\u1ebd v\u1ec1. Soi c\u1ea7u l\u00f4 \u0111\u1ec1 theo h\u00ecnh qu\u1ea3 tr\u00e1m hay c\u00f2n g\u1ecdi l\u00e0 B\u1ea1ch th\u1ee7 l\u00f4 th\u1ea7n ch\u01b0\u1edfng l\u00e0 m\u1ed9t trong nh\u1eefng kinh nghi\u1ec7m ch\u01a1i l\u00f4 \u0111\u1ec1 ph\u1ed5 bi\u1ebfn \u1edf mi\u1ec1n B\u1eafc. C\u00f3 2 c\u00e1ch b\u1eaft g\u1ee3i \u00fd cho b\u1ea1n:<\/p>\n\n\n\n Hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau nh\u01b0ng kh\u00f4ng ph\u1ea3i c\u00e1ch n\u00e0o c\u0169ng \u0111em l\u1ea1i t\u1ef7 l\u1ec7 tr\u00fang cao. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 g\u1ee3i \u00fd c\u00e1ch soi c\u1ea7u l\u00f4 hi\u1ec7u qu\u1ea3 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u00e1p d\u1ee5ng nh\u1ea5t hi\u1ec7n nay:<\/p>\n\n\n\n Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u ch\u01a1i s\u1ed1 \u0111\u1ec1, b\u1ea1n c\u1ea7n n\u1eafm b\u1eaft r\u00f5 c\u00e1c quy lu\u1eadt \u0111\u1ec3 kh\u00f4ng ph\u1ea1m ph\u1ea3i sai l\u1ea7m tai h\u1ea1i. Tr\u00e1nh ti\u1ec1n m\u1ea5t t\u1eadt mang v\u00f4 c\u1edb. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n\n\n <\/p>\n\n\n Lu\u1eadt ch\u01a1i l\u00f4 \u0111\u1ec1 kh\u00e1 l\u00e0 \u0111\u01a1n gi\u1ea3n cho ng\u01b0\u1eddi m\u1edbi l\u1ea7n \u0111\u1ea7u ti\u1ebfp x\u00fac v\u1edbi l\u00f4 \u0111\u1ec1. B\u1ea1n h\u00e3y lu\u00f4n ghi nh\u1edb nh\u1eefng \u0111i\u1ec1u sau \u0111\u1ec3 gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i cho b\u1ea3n th\u00e2n \u0111\u1ebfn m\u1ee9c t\u1ed1i thi\u1ec3u nh\u1ea5t.<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 bi\u1ebft c\u00e1ch xem k\u1ebft qu\u1ea3 l\u00f4 \u0111\u1ec1 nh\u01b0 th\u1ebf n\u00e0o l\u00e0 ch\u00ednh x\u00e1c nh\u1ea5t hay ch\u01b0a? Theo nh\u01b0 c\u00e1c chuy\u00ean gia th\u00ec \u0111\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c nh\u1eefng c\u1eb7p s\u1ed1 \u0111\u1eb9p nh\u1ea5t b\u1ea1n c\u1ea7n bi\u1ebft ph\u00e2n t\u00edch c\u00e1c d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. B\u00ean c\u1ea1nh \u0111\u00f3 l\u00e0 \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 \u0111\u1ec1 3 mi\u1ec1n. M\u1ed7i mi\u1ec1n \u0111\u1ec1u c\u00f3 c\u00e1ch soi c\u1ea7u, l\u1eadp d\u00e0n \u0111\u1ec1 v\u00e0 nu\u00f4i l\u00f4 kh\u00e1c nhau.<\/p>\n\n\n\n Ng\u01b0\u1eddi ch\u01a1i c\u0169ng c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u c\u00e1c b\u00e0i vi\u1ebft v\u1ec1 gi\u1ea3i m\u00e3 nh\u1eefng gi\u1ea5c m\u01a1 \u0111\u1ec3 bi\u1ebft nh\u1eefng con s\u1ed1 \u0111\u1ec1 may m\u1eafn \u1ea9n ch\u1ee9a trong \u0111\u00f3. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng b\u00ed quy\u1ebft ch\u01a1i \u0111\u1ec1 mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c cao cho m\u1ecdi ng\u01b0\u1eddi.<\/p>\n\n\n\n Mu\u1ed1n ch\u01a1i l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 th\u00ec ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i bi\u1ebft c\u00e1ch ch\u1ecdn s\u1ed1 \u0111\u1ec1 sao cho ch\u00ednh x\u00e1c nh\u1ea5t. Qua \u0111\u00f3 kh\u00f4ng ch\u1ec9 gi\u00fap t\u0103ng cao t\u1ef7 l\u1ec7 th\u1eafng m\u00e0 s\u1ed1 ti\u1ec1n l\u00e3i thu v\u1ec1 c\u0169ng g\u1ea5p nhi\u1ec1u l\u1ea7n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c b\u00ed quy\u1ebft ch\u1ecdn s\u1ed1 \u0111\u1ec1 cho b\u1ea1n tham kh\u1ea3o:<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 mua v\u00e9 s\u1ed1 qu\u00e1 nhi\u1ec1u l\u1ea7n nh\u01b0ng kh\u00f3 l\u1eafm m\u1edbi c\u00f3 v\u00e0i l\u1ea7n may m\u1eafn. N\u1ebfu c\u00f3 th\u00ec c\u0169ng to\u00e0n tr\u00fang c\u00e1c gi\u1ea3i ch\u00f3t, ti\u1ec1n th\u1eafng ch\u1ea3 \u0111\u01b0\u1ee3c bao nhi\u00eau. Nh\u1eefng l\u1eddi khuy\u00ean d\u01b0\u1edbi \u0111\u00e2y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch mua v\u00e9 s\u1ed1 d\u1ec5 tr\u00fang nh\u1ea5t:<\/p>\n\n\n\n Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin t\u1ed5ng h\u1ee3p v\u1ec1 c\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1 \u0111\u01a1n gi\u1ea3n m\u00e0 hi\u1ec7u qu\u1ea3 t\u1eeb c\u00e1c cao th\u1ee7 chuy\u00ean nghi\u1ec7p. Hy v\u1ecdng b\u00e0i bi\u1ebft \u0111\u00e3 mang \u0111\u1ebfn nh\u1eefng \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho c\u1ed9ng \u0111\u1ed3ng ng\u01b0\u1eddi y\u00eau th\u00edch s\u1ed1 \u0111\u1ec1. Ch\u00fac b\u1ea1n \u00e1p d\u1ee5ng c\u00e1c b\u00ed quy\u1ebft th\u00e0nh c\u00f4ng.<\/p>\n\n\n <\/p>\r\n Nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn vi\u1ec7c \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ec3 gi\u1ea3i t\u1ecfa tinh th\u1ea7n sau ng\u00e0y l\u00e0m vi\u1ec7c m\u1ec7t m\u1ecfi. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft c\u00e1ch…<\/p>\n","protected":false},"author":1,"featured_media":10702,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[409],"tags":[1050,1053,1051,1052,1048,1047,1049],"yoast_head":"\nH\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1<\/strong><\/h2>\n\n\n\n
C\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111\u1ec1 chu\u1ea9n x\u00e1c<\/strong><\/h3>\n\n\n\n
Gi\u1ea3 s\u1eed: 2 s\u1ed1 cu\u1ed1i c\u1ee7a \u0111\u1ec1 v\u1ec1 ng\u00e0y h\u00f4m nay l\u00e0 58. Trong \u0111\u00f3, 5 => 3, 8=>6. V\u1eady ch\u00fang ta thu \u0111\u01b0\u1ee3c con 36 \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y th\u1ee9 3. Ng\u01b0\u1eddi ch\u01a1i l\u01b0u \u00fd r\u1eb1ng c\u00e1ch n\u00e0y ch\u1ec9 t\u01b0\u01a1ng \u0111\u1ed1i ch\u00ednh x\u00e1c v\u1edbi c\u00e1c gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y th\u1ee9 nh\u1ea5t. T\u1ed5ng 5 con s\u1ed1 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ed9ng l\u1ea1i t\u1eeb 20 -> 30.<\/p>\n\n\n\nC\u00e1ch t\u00ednh x\u00e1c su\u1ea5t l\u00f4 \u0111\u1ec1 d\u1ec5 d\u00e0ng <\/strong><\/h3>\n\n\n\n
C\u00e1ch t\u00ednh t\u1ed5ng l\u00f4 \u0111\u1ec1 \u0111\u01a1n gi\u1ea3n<\/strong><\/h3>\n\n\n\n
C\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1 theo ng\u0169 h\u00e0nh<\/strong><\/h3>\n\n\n\n
C\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1 theo ng\u00e0y<\/strong><\/h3>\n\n\n\n
\u0110\u1ec1 c\u1ee7a ng\u00e0y \u0111\u1ea7u ti\u00ean l\u00e0 MN => L\u00f4 ng\u00e0y 3 = AB. \u0110\u00e1nh li\u1ec1n con l\u1ed9n BA.<\/li>M\u00e1ch b\u1ea1n c\u00e1c c\u00e1ch \u0111\u00e1nh \u0111\u1ec1 d\u1ec5 nh\u1ea5t<\/strong><\/h2>\n\n\n\n
C\u00e1c c\u00e1ch \u0111\u00e1nh \u0111\u1ec1 ch\u00ednh x\u00e1c<\/strong><\/h3>\n\n\n\n
M\u1ed9t tu\u1ea7n c\u00f3 7 ng\u00e0y, \u0111\u1eb7t c\u01b0\u1ee3c h\u00f4m n\u00e0o th\u00ec \u0111i k\u00e8m con b\u1ea1ch th\u1ee7 v\u00e0o l\u00f4 c\u1ee7a ng\u00e0y \u0111\u00f3.<\/li>
K\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c l\u00f4 3 c\u00e0ng l\u00e0 742. N\u1ebfu t\u1ed5ng l\u00f4 b\u1ea1ch th\u1ee7 l\u00e0 s\u1ed1 ch\u1eb5n th\u00ec kh\u00f4ng \u0111\u00fang.<\/li>
V\u00ed d\u1ee5: \u0110\u00e0i T\u00e2y Ninh c\u00f3 b\u1ea1ch th\u1ee7 38 v\u00e0 s\u1ed1 thu\u1eadn l\u00e0 938.<\/li>
V\u00ed d\u1ee5: B\u1ea1ch th\u1ee7 l\u00f4 l\u00e0 62 v\u1edbi t\u1ed5ng b\u1eb1ng 8 th\u00ec gh\u00e9p th\u00e0nh 862.<\/li>
V\u00ed d\u1ee5: b\u1ea1ch th\u1ee7 ng\u00e0y h\u00f4m \u0111\u00f3 l\u00e0 62 th\u00ec gh\u00e9p th\u00e0nh 262 v\u00e0 662.<\/li>
V\u00ed d\u1ee5: L\u00f4 b\u1ea1ch th\u1ee7 ra c\u00f3 h\u00e0ng \u0111\u01a1n v\u1ecb b\u1eb1ng 2 th\u00ec gh\u00e9p th\u00e0nh X62. Trong \u0111\u00f3 X=0, 1, 2, 3, 4<\/li><\/ul>\n\n\n\nC\u00e1ch nu\u00f4i l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3<\/strong><\/h3>\n\n\n\n
C\u00e1ch \u0111\u00e1nh \u0111\u1ec1 ch\u1eb5n l\u1ebb <\/strong><\/h3>\n\n\n\n
Lu\u1eadn \u0111\u1ec1<\/strong><\/h2>\n\n\n\n
Vai tr\u00f2 lu\u1eadn \u0111\u1ec1<\/strong><\/h3>\n\n\n\n
B\u00ed k\u00edp lu\u1eadn \u0111\u1ec1<\/strong>
<\/h3>\n\n\n\nLu\u1eadn \u0111\u1ec1 theo con v\u1eadt<\/strong><\/h3>\n\n\n\n
T\u00ecm hi\u1ec3u v\u1ec1 s\u00e1ch lu\u1eadn l\u00f4 \u0111\u1ec1<\/strong><\/h3>\n\n\n\n
Soi l\u00f4 \u0111\u1ec1 ra sao?<\/strong><\/h2>\n\n\n\n
Soi l\u00f4 \u0111\u1ec1 theo x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft<\/strong><\/h3>\n\n\n\n
V\u00ed d\u1ee5 :gi\u1ea3i 7 v\u1ec1 4 c\u1eb7p l\u00e0 41, 17, 35, 52. Trong \u0111\u00f3, 1 n\u1eb1m \u1edf \u0111u\u00f4i 41 v\u00e0 \u0111\u1ea7u 17. Nh\u01b0 v\u1eady, kh\u1ea3 n\u0103ng l\u00f4 k\u00e9p k\u00e9p v\u1ec1 ng\u00e0y h\u00f4m sau l\u00e0 11.<\/p>\n\n\n\nSoi l\u00f4 b\u1ea1ch th\u1ee7 <\/strong><\/h3>\n\n\n\n
VD: Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 35678, gi\u1ea3i nh\u1ea5t l\u00e0 87005. Ta s\u1ebd \u0111\u01b0\u1ee3c : 78 \u2013 05 = 73. Do \u0111\u00f3, \u0111\u1ec1 s\u1ebd v\u1ec1 73 \u2013 37 cho 3 ng\u00e0y k\u1ebf ti\u1ebfp.<\/li>Soi c\u1ea7u l\u00f4<\/strong><\/h3>\n\n\n\n
V\u00ed d\u1ee5: B\u1ea1n c\u00f3 \u00fd \u0111\u1ecbnh \u0111\u00e1nh b\u1ea1ch th\u1ee7 78, ng\u00e0y h\u00f4m \u0111\u00f3 l\u00e0 th\u1ee9 3 th\u00ec c\u00f3 th\u1ec3 \u0111\u00e1nh s\u1ed1 783 ho\u1eb7c 378.<\/li>
V\u00ed d\u1ee5: H\u00f4m nay l\u00e0 25, b\u1ea1ch th\u1ee7 \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0 15. Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u0111\u00e1nh 515 hay 155.<\/li><\/ul><\/li>Nh\u1eefng \u0111i\u1ec1u b\u1ea1n c\u1ea7n ghi nh\u1edb tr\u01b0\u1edbc khi ch\u01a1i l\u00f4 \u0111\u1ec1<\/strong><\/h2>\n\n\n\n
Lu\u1eadt l\u00f4 \u0111\u1ec1<\/strong><\/h3>\n\n\n\n
D\u00f2 k\u1ebft qu\u1ea3 l\u00f4 \u0111\u1ec1 nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h3>\n\n\n\n
C\u00e1ch ch\u1ecdn s\u1ed1 \u0111\u1ec1 th\u00f4ng minh<\/strong><\/h3>\n\n\n\n
Chia s\u1ebb m\u1eb9o mua v\u00e9 s\u1ed1 d\u1ec5 tr\u00fang<\/strong><\/h2>\n\n\n\n
\u00a0\u00a0k\u1ebft qu\u1ea3 mi\u1ec1n b\u1eafc super vip\u00a0<\/span><\/h3>\r\n\u00a0k\u1ebft qu\u1ea3 b\u1ea1ch th\u1ee7 l\u00f4 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n\u00a0k\u1ebft qu\u1ea3 b\u1ea1ch th\u1ee7 l\u00f4 2 nh\u00e1y mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 song th\u1ee7 l\u00f4 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 b\u1ea1ch th\u1ee7 l\u00f4 k\u00e9p mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 song th\u1ee7 l\u00f4 k\u00e9p mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 b\u1ea1ch th\u1ee7 \u0111\u1ec1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 song th\u1ee7 \u0111\u1ec1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n \u0111\u1ec1 4 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n \u0111\u1ec1 6 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n \u0111\u1ec1 8 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n \u0111\u1ec1 10 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 4 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n
\u00a0khu v\u1ef1c ch\u1ed1t s\u1ed1 mi\u1ec1n b\u1eafc<\/h4>\r\n\u00a0k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 6 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 8 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 xi\u00ean 2 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 xi\u00ean 3 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 xi\u00ean 4 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 3 c\u00e0ng mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n 3 c\u00e0ng 2 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 d\u00e0n l\u00f4 10 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i mi\u1ec1n b\u1eafc<\/a><\/strong>\r\n
\u00a0khu v\u1ef1c ch\u1ed1t s\u1ed1 mi\u1ec1n nam<\/h4>\r\n\u00a0k\u1ebft qu\u1ea3 x\u1ec9u ch\u1ee7 mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 gi\u1ea3i 8 mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 bao l\u00f4 mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 c\u1eb7p x\u1ec9u ch\u1ee7 mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 song th\u1ee7 l\u00f4 mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 \u0111\u1ea7u \u0111u\u00f4i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n nam<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 l\u00f4 3 s\u1ed1 mi\u1ec1n nam<\/a><\/strong>\r\n
\u00a0khu v\u1ef1c ch\u1ed1t s\u1ed1 mi\u1ec1n trung<\/h4>\r\n\u00a0k\u1ebft qu\u1ea3 x\u1ec9u ch\u1ee7 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 gi\u1ea3i 8 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 bao l\u00f4 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 c\u1eb7p x\u1ec9u ch\u1ee7 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 song th\u1ee7 l\u00f4 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 \u0111\u1ea7u \u0111u\u00f4i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n trung<\/a><\/strong>\r\n\r\n k\u1ebft qu\u1ea3 l\u00f4 3 s\u1ed1 mi\u1ec1n trung<\/a><\/strong>\r\n\r\n\u00a0 soi c\u1ea7u \u0111\u1ea7u n\u0103m m\u1edbi si\u00eau chu\u1ea9n\u00a0x\u00e1c \u2013 cam k\u1ebft: \u0103n ch\u1eafc\u00a0soi s\u1ed1 3 c\u00e0ng si\u00eau chu\u1ea9n – soi s\u1ed1 b\u1ea1ch th\u1ee7 \u0111\u1ec1 – soi cau lo 3 cang<\/span>\r\n\r\n","protected":false},"excerpt":{"rendered":"