{"id":18476,"date":"2024-03-19T12:42:07","date_gmt":"2024-03-19T12:42:07","guid":{"rendered":"https:\/\/soicau3060.minhngocxoso.com\/?p=18476"},"modified":"2024-03-19T12:42:07","modified_gmt":"2024-03-19T12:42:07","slug":"kinh-nghiem-bo-tui-khi-soi-cau-lo-de","status":"publish","type":"post","link":"https:\/\/chotdebachthu.com\/kinh-nghiem-bo-tui-khi-soi-cau-lo-de\/","title":{"rendered":"kinh nghi\u1ec7m b\u1ecf t\u00fai khi soi c\u1ea7u l\u00f4 \u0111\u1ec1"},"content":{"rendered":"
\u1ede b\u00e0i vi\u1ebft n\u00e0y n\u00f3i \u0111\u1ebfn c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong d\u00e2n gian nh\u01b0ng kh\u00f4ng ph\u1ea3i ai c\u0169ng th\u1ef1c hi\u1ec7n th\u00e0nh c\u00f4ng. Tuy nhi\u00ean ph\u1ea3i th\u1eed th\u00ec m\u1edbi bi\u1ebft c\u00f3 th\u00e0nh c\u00f4ng v\u1edbi m\u00ecnh hay kh\u00f4ng. L\u00e0m vi\u1ec7c g\u00ec hay ch\u01a1i tr\u00f2 ch\u01a1i n\u00e0o c\u0169ng th\u1ebf, mu\u1ed1n gi\u00e0nh chi\u1ebfn th\u1eafng th\u00ec ph\u1ea3i th\u1eed v\u00e0 ch\u01a1i l\u00f4 \u0111\u1ec1 online c\u0169ng kh\u00f4ng ngo\u1ea1i l\u1ec7. C\u00f9ng tham kh\u1ea3o b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/p>\n
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C\u1ea7u l\u00f4 ch\u00ednh l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa hai v\u1ecb tr\u00ed b\u1ea5t k\u00ec tr\u00ean b\u1ea3ng k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1. Nh\u01b0 v\u1eady vi\u1ec7c soi c\u1ea7u l\u00f4 l\u00e0 soi x\u00e9t di\u1ec5n bi\u1ebfn c\u1ee7a vi\u1ec7c gh\u00e9p hai v\u1ecb tr\u00ed trong b\u1ea3ng k\u1ebft qu\u1ea3 trong nhi\u1ec1u ng\u00e0y li\u00ean ti\u1ebfp.<\/p>\n
Khi soi c\u1ea7u l\u00f4 b\u1ea1n ph\u1ea3i bi\u1ebft c\u00f3 bao nhi\u00eau v\u1ecb tr\u00ed trong b\u1ea3ng k\u1ebft qu\u1ea3. \u1ede gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, I, II, gi\u1ea3i III c\u00f3 5 s\u1ed1. V\u1eady 10 gi\u1ea3i s\u1ebd c\u00f3 50 s\u1ed1.<\/p>\n
40 s\u1ed1 g\u1ed3m 4 gi\u1ea3i t\u01b0 v\u00e0 6 gi\u1ea3i n\u0103m m\u1ed7i gi\u1ea3i c\u00f3 4 s\u1ed1, 3 gi\u1ea3i 6 v\u1eady c\u00f3 9 s\u1ed1. Gi\u1ea3i 7 c\u00f3 4 gi\u1ea3i, m\u1ed7i gi\u1ea3i 2 s\u1ed1 l\u00e0 8 s\u1ed1.<\/p>\n
Nh\u01b0 v\u1eady ta c\u00f3 t\u1ea5t c\u1ea3 50+40+9+8=107 s\u1ed1 t\u01b0\u01a1ng \u1ee9ng 107 v\u1ecb tr\u00ed kh\u00e1c nhau.<\/p>\n
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T\u1eeb \u0111\u1ecbnh ngh\u0129a v\u1ec1 c\u1ea7u l\u00f4 ta c\u00f3 th\u1ec3 hi\u1ec3u r\u1eb1ng, \u1edf m\u1ed7i v\u1ecb tr\u00ed c\u00f3 th\u1ec3 gh\u00e9p \u0111\u01b0\u1ee3c 106 v\u1ecb tr\u00ed kh\u00e1c nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh 106 c\u1ea7u l\u00f4 kh\u00e1c nhau. Theo ph\u00e9p t\u00ednh giai th\u1eeba th\u00ec t\u1ed5ng s\u1ed1 c\u1ea7u l\u00f4 gh\u00e9p 2 v\u1ecb tr\u00ed kh\u00e1c nhau l\u00e0 [(107!)\/(107-2)! X 2!] = 5671.<\/p>\n
Th\u00eam m\u1ed9t \u0111i\u1ec1u ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ch\u00fa \u00fd l\u00e0 c\u00e1c v\u1ecb tr\u00ed kh\u00f4ng ch\u1ec9 gh\u00e9p v\u1edbi v\u1ecb tr\u00ed kh\u00e1c m\u00e0 c\u00f3 th\u1ec3 gh\u00e9p \u0111\u01b0\u1ee3c v\u1edbi ch\u00ednh n\u00f3 \u0111\u1ec3 c\u00f3 c\u1eb7p s\u1ed1 k\u00e9p. Nh\u01b0 v\u1eady ta l\u1ea1i c\u00f3 th\u00eam 107 c\u1ea7u l\u00f4 s\u1ed1 k\u00e9p n\u1eefa \u0111\u1ec3 \u0111\u00e1nh l\u00f4 \u0111\u1ec1.<\/p>\n
Ngo\u00e0i ra c\u00f2n c\u00f3 c\u00e1ch gh\u00e9p t\u1eebng v\u1ecb tr\u00ed trong b\u1ea3ng k\u1ebft qu\u1ea3 v\u1edbi c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean t\u1eeb 0-9, c\u00f3 th\u00eam 107\u00d710=1070 c\u1ea7u l\u00f4 n\u1eefa. V\u1edbi c\u00e1ch gh\u00e9p n\u00e0y nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p ra c\u1ea7u l\u00f4 c\u1ef1c t\u1ed1t.<\/p>\n
M\u1ecdi c\u00e1ch gh\u00e9p ta c\u00f3 5671 + 107 + 1070 = 6848 c\u1ea7u l\u00f4.<\/p>\n
T\u1eeb \u0111\u00e2y ta c\u00f3 th\u1ec3 n\u1eafm r\u00f5 c\u00e1c v\u1ecb tr\u00ed v\u00e0 t\u1ed5ng s\u1ed1 l\u01b0\u1ee3ng c\u1ea7u l\u00f4 c\u1ea7n soi x\u00e9t \u0111\u1ec3 c\u00f3 nh\u1eefng quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t khi soi c\u1ea7u l\u00f4. V\u00e0 m\u1ed9t \u0111i\u1ec1u m\u00e0 m\u1ecdi ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 online hay \u00e1p d\u1ee5ng khi soi c\u1ea7u l\u00f4 \u0111\u00f3 l\u00e0 kh\u00f4ng \u0111\u00e1nh theo c\u1ea7u l\u00f4 c\u00f3 s\u1ed1 ng\u00e0y ra s\u1ed1 th\u1ea5p m\u00e0 s\u1ebd \u0111\u00e1nh l\u00f4 theo nh\u1eefng c\u1ea7u l\u00f4 c\u00f3 s\u1ed1 ng\u00e0y ra s\u1ed1 theo c\u1ea7u cao, c\u00f3 nh\u01b0 v\u1eady t\u1ec9 l\u1ec7 \u0103n l\u00f4 m\u1edbi cao. Ch\u00fac b\u1ea1n may m\u1eafn khi ch\u01a1i l\u00f4 \u0111\u1ec1 online.<\/p>\n<\/div>\n<\/div>\n