May m\u1eafn c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c bao l\u00e2u khi ch\u01a1i x\u1ed5 s\u1ed1? B\u1edfi v\u1eady c\u1ea7n d\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay<\/strong> \u0111\u1ec3 t\u0103ng th\u00eam c\u01a1 h\u1ed9i tr\u00fang th\u01b0\u1edfng. C\u00f9ng t\u00ecm hi\u1ec3u ngay c\u00e1ch t\u00ednh to\u00e1n d\u1ef1 \u0111o\u00e1n d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 mang t\u00e0i l\u1ed9c v\u1ec1 nh\u00e0 nh\u00e9.<\/p>\n Soi c\u1ea7u x\u1ed5 s\u1ed1, ta x\u00e9t k\u1ebft qu\u1ea3 trong 2 h\u00f4m tr\u01b0\u1edbc. Gi\u1ea3 s\u1eed ng\u00e0y th\u1ee9 nh\u1ea5t c\u00f3 2 s\u1ed1 cu\u1ed1i gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 58 -> ng\u00e0y th\u1ee9 3 s\u1ebd c\u00f3 36 ( v\u00ec 5->3 ; 6 )<\/p>\n H\u00f4m nay th\u1ea5y c\u00f3 s\u1ed1 \u0110\u1ec1 v\u1ec1 32 ->ng\u00e0y kia d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1<\/strong> s\u1ebd c\u00f3 l\u00f4 15 ( v\u00ec 3->1 ; 2->5)<\/p>\n Tuy nhi\u00ean, c\u00e1ch t\u00ednh n\u00e0y ch\u1ec9 ch\u00ednh x\u00e1c v\u1edbi gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y 1 c\u00f3 t\u1ed5ng t\u1eeb 20 -> 30.<\/p>\n T\u00ednh to\u00e1n c\u1ee5 th\u1ec3:<\/p>\n Quy \u0111\u1ecbnh trong d\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay<\/strong>:<\/p>\n MN = Con \u0110\u1ec1 v\u1ec1 ng\u00e0y 1<\/p>\n CD = Con \u0110\u1ec1 v\u1ec1 ng\u00e0y 2<\/p>\n AB = s\u1ed1 c\u1ea7n d\u1ef1 \u0111o\u00e1n (A, B l\u00e0 kh\u00e1c nhau trong 1 s\u1ed1)<\/p>\n VD: MN = 35 ( 3#5) CD = 39 ( 3#9), c\u00f3 th\u1ec3 c\u00e1c s\u1ed1 MNCD c\u00f3 th\u1ec3 gi\u1ed1ng nhau nh\u01b0 M gi\u1ed1ng C<\/p>\n Trong t\u1eebng ng\u00e0y ch\u01a1i c\u1ee5 th\u1ec3 ta c\u00f3:<\/p>\n T\u1ed5ng trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t = 20 ; 25<\/p>\n H\u00f4m th\u1ee9 1 c\u00f3 \u0110\u1ec1 = MN -> s\u1ed1 l\u00f4 ng\u00e0y c\u1ea7n d\u1ef1 \u0111o\u00e1n = AB => Ta \u0111\u00e1nh BA<\/p>\n C\u00f3 t\u1ed5ng \u0111\u1eb7c bi\u1ec7t = s\u1ed1 ch\u1eb5n ( 22, 24, 26, 28)<\/p>\n H\u00f4m th\u1ee9 1 \u0111\u1ec1 = MN -> ta d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1<\/strong> L\u00f4 ng\u00e0y 3 = AB<\/p>\n Ti\u1ebfp t\u1ee5c t\u00ednh to\u00e1n c\u00f4ng th\u1ee9c: 10 \u2013 B = I v\u00e0 gi\u1eef nguy\u00ean A => ch\u1ed1t \u0111\u01b0\u1ee3c s\u1ed1 AI<\/p>\n C\u00e1c t\u1ed5ng b\u1eb1ng s\u1ed1 l\u1ebb c\u00f3 30 (21, 23, 29, 30)<\/p>\n H\u00f4m 1 \u0111\u1ec3 = MN -> d\u1ef1 \u0111o\u00e1n k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1<\/strong> ng\u00e0y 3 = AB => \u0111\u00e1nh AB<\/p>\n S\u1ed1 l\u00f4 trong ng\u00e0y 1 = MN -> suy ra l\u00f4 ng\u00e0y 3 d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1<\/strong> l\u00e0 AB.<\/p>\n S\u1ed1 l\u00f4 trong ng\u00e0y 2 l\u00e0 CD. M\u00e0 MN -> CD ( MN -> CD t\u01b0\u01a1ng t\u1ef1 MN-> AB)<\/p>\n T\u1ee9c AB=CD ( k\u1ebft qu\u1ea3 ng\u00e0y 2 = v\u1edbi l\u00f4 d\u1ef1 t\u00ednh ng\u00e0y 3)<\/p>\n => BA l\u00e0 k\u1ebft qu\u1ea3 sau qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n soi l\u00f4<\/strong><\/p>\n \u0110\u1ec1 ng\u00e0y 1 -> l\u00f4 ng\u00e0y 3 l\u00e0 AB. T\u1ed5ng ng\u00e0y 2 c\u00f3 \u0111\u01b0\u1ee3c = xy -> AB<\/p>\n => Ta \u0111\u00e1nh con BA<\/p>\n VD: \u0110\u1ec1 ng\u00e0y 1 = 35 -> l\u00f4 ng\u00e0y 3 = 13. Nh\u01b0ng c\u00f3 t\u1ed5ng ng\u00e0y 2 c\u0169ng = 35 -> 13 => ng\u00e0y 3 \u0111\u00e1nh l\u00f4 31<\/p>\n \u0110\u1ec1 ng\u00e0y 1 = MN -> d\u1ef1 \u0111o\u00e1n ng\u00e0y 3 = AB. \u0110\u1ec1 v\u1ec1 ng\u00e0y 2= CD. M\u00e0 C= M+x, D=N+x ( x l\u00e0 s\u1ed1 \u00e2m ho\u1eb7c d\u01b0\u01a1ng \u0111\u1ec1u \u0111\u00fang) => Ch\u1ed1t l\u1ef1a ch\u1ecdn BA<\/p>\n Nh\u1eefng c\u00e1ch t\u00ednh to\u00e1n d\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay<\/strong> kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p. M\u1ed9t ch\u00fat khoa h\u1ecdc t\u00ednh to\u00e1n, m\u1ed9t ch\u00fat may m\u1eafn l\u00e0 \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 tr\u00fang th\u01b0\u1edfng.<\/p>\n<\/div>\n<\/div>\n Thu\u1eadt to\u00e1n d\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay May m\u1eafn c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c bao l\u00e2u khi ch\u01a1i x\u1ed5 s\u1ed1? B\u1edfi v\u1eady c\u1ea7n d\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay \u0111\u1ec3 t\u0103ng th\u00eam c\u01a1 h\u1ed9i tr\u00fang th\u01b0\u1edfng. C\u00f9ng t\u00ecm hi\u1ec3u Continue reading Thu\u1eadt to\u00e1n d\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay<\/span>D\u1ef1 \u0111o\u00e1n l\u00f4 t\u00f4 mi\u1ec1n B\u1eafc h\u00f4m nay qua gi\u1ea3i \u0111\u1eb7c bi\u1ec7t<\/strong><\/h2>\n
\u0110\u1eb7c bi\u1ec7t l\u01b0u t\u00e2m khi ch\u01a1i s\u1ed1<\/h2>\n
ch\u1ed1t s\u1ed1 vip<\/h3>\n
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b\u1ea1ch th\u1ee7 l\u00f4 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
b\u1ea1ch th\u1ee7 l\u00f4 2 nh\u00e1y mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
song th\u1ee7 l\u00f4 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
b\u1ea1ch th\u1ee7 l\u00f4 k\u00e9p mb<\/a><\/strong><\/li>\n
song th\u1ee7 l\u00f4 k\u00e9p mb<\/a><\/strong><\/li>\n
b\u1ea1ch th\u1ee7 \u0111\u1ec1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
song th\u1ee7 \u0111\u1ec1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n \u0111\u1ec1 4 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n \u0111\u1ec1 6 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n \u0111\u1ec1 8 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n \u0111\u1ec1 10 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n l\u00f4 4 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n
ch\u1ed1t s\u1ed1 c\u1ea7u \u0111\u1eb9p mi\u1ec1n b\u1eafc<\/span><\/h3>\n
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d\u00e0n l\u00f4 6 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n l\u00f4 8 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n l\u00f4 xi\u00ean 2 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n l\u00f4 xi\u00ean 3 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
d\u00e0n l\u00f4 xi\u00ean 4 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
x\u00e1c 3 c\u00e0ng mi\u1ec1n b\u1eafc<\/a><\/strong><\/span><\/li>\n
3 c\u00e0ng 2 s\u1ed1 mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n
l\u00f4 10 s\u1ed1 mi\u1ec1n b\u1eafc vip<\/a><\/strong><\/li>\n
\u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i mi\u1ec1n b\u1eafc<\/a><\/strong><\/li>\n<\/ul>\n<\/div>\n
ch\u1ed1t s\u1ed1 c\u1ea7u \u0111\u1eb9p mi\u1ec1n nam<\/span><\/h3>\n
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x\u1ec9u ch\u1ee7 mi\u1ec1n nam<\/a><\/strong><\/li>\n
gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mn<\/a><\/strong><\/li>\n
gi\u1ea3i 8 mi\u1ec1n nam<\/a><\/strong><\/li>\n
bao l\u00f4 mi\u1ec1n nam<\/a><\/strong><\/li>\n
c\u1eb7p x\u1ec9u ch\u1ee7 mn vip<\/a><\/strong><\/li>\n
song th\u1ee7 l\u00f4 mn<\/a><\/strong><\/li>\n
\u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mn<\/a><\/strong><\/li>\n
\u0111\u1ea7u \u0111u\u00f4i \u0111\u1eb7c bi\u1ec7t<\/a><\/strong><\/li>\n
l\u00f4 3 s\u1ed1 mi\u1ec1n nam<\/a>\u00a0<\/a><\/strong><\/li>\n<\/ul>\n<\/div>\n
ch\u1ed1t s\u1ed1 c\u1ea7u \u0111\u1eb9p mi\u1ec1n trung<\/span><\/h3>\n
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x\u1ec9u ch\u1ee7 mi\u1ec1n trung<\/a><\/strong><\/li>\n
gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mt<\/a><\/strong><\/li>\n
gi\u1ea3i 8 mi\u1ec1n trung<\/a><\/strong><\/li>\n
bao l\u00f4 mi\u1ec1n trung<\/a><\/strong><\/li>\n
song th\u1ee7 l\u00f4 mt<\/a><\/strong><\/li>\n
c\u1eb7p x\u1ec9u ch\u1ee7 mt vip<\/a><\/strong><\/li>\n
\u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mt<\/a><\/strong><\/li>\n
\u0111\u1ea7u \u0111u\u00f4i \u0111\u1eb7c bi\u1ec7t<\/a><\/strong><\/li>\n
l\u00f4 3 s\u1ed1 mi\u1ec1n trung<\/a><\/strong><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"