{"id":814,"date":"2024-03-05T05:23:42","date_gmt":"2024-03-05T05:23:42","guid":{"rendered":"http:\/\/wpr.bachthulo88.com\/?p=814"},"modified":"2024-03-05T05:23:42","modified_gmt":"2024-03-05T05:23:42","slug":"du-doan-xo-trung-thuong-quan-sat","status":"publish","type":"post","link":"https:\/\/batlobachthu.com\/du-doan-xo-trung-thuong-quan-sat\/","title":{"rendered":"D\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng quan s\u00e1t"},"content":{"rendered":"

Ch\u01a1i x\u1ed5 s\u1ed1 kh\u00f4ng ph\u1ea3i l\u00e0 vi\u1ec7c \u0111\u01a1n gi\u1ea3n ch\u1ec9 d\u1ef1a v\u00e0o may m\u1eafn. B\u1edfi v\u1eady c\u1ea7n\u00a0d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng<\/strong>\u00a0\u0111\u1ec3 t\u0103ng th\u00eam c\u01a1 h\u1ed9i chi\u1ebfn th\u1eafng. C\u00f9ng t\u00ecm hi\u1ec3u ngay c\u00e1ch d\u1ef1 \u0111o\u00e1n d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 mang t\u00e0i l\u1ed9c v\u1ec1 nh\u00e0 n\u00e0o.<\/p>\n

D\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng quan s\u00e1t<\/h2>\n

\u0110\u1ec3\u00a0soi c\u1ea7u l\u00f4 \u0111\u1ec1 h\u00f4m nay<\/strong>, 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 l\u00e0 58 -> suy ra ng\u00e0y th\u1ee9 3 s\u1ebd c\u00f3 36 ( v\u00ec 5->3 ; 6 )<\/p>\n

VD c\u1ee5 th\u1ec3 : H\u00f4m nay \u0110\u1ec1 v\u1ec1 32 -> suy ra ng\u00e0y kia 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 c\u00e1c gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y th\u1ee9 Nh\u1ea5t c\u00f3 t\u1ed5ng t\u1eeb 20 -> 30.<\/p>\n

Quy \u0111\u1ecbnh \u0111\u1ec3 ti\u1ec7n cho vi\u1ec7c tr\u00ecnh b\u00e0y t\u00ednh to\u00e1n\u00a0d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng<\/strong>:<\/p>\n

MN = \u0110\u1ec1 ng\u00e0y 1<\/p>\n

CD = \u0110\u1ec1 ng\u00e0y 2<\/p>\n

AB = L\u00f4 ng\u00e0y 3 (c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c)<\/p>\n

A, B l\u00e0 kh\u00e1c nhau n\u1ebfu trong c\u00f9ng m\u1ed9t s\u1ed1. C\u00f2n \u1edf 2 ng\u00e0y kh\u00e1c nhau th\u00ec c\u00f3 th\u1ec3 gi\u1ed1ng nhau.<\/p>\n

VD: MN = 35 ( 3#5) CD = 39 ( 3#9, C=M)<\/p>\n

C\u1ea7n nh\u1edb: \u1edf \u0111\u00e2y, CD ch\u01b0a c\u00f3 quan h\u1ec7 g\u00ec v\u1edbi nhau.<\/p>\n

Trong t\u1eebng ng\u00e0y c\u1ee5 th\u1ec3 ta c\u00f3:<\/p>\n

T\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t = 20 ; 25<\/p>\n

Ng\u00e0y 1 c\u00f3 \u0110\u1ec1 = MN -> suy ra l\u00f4 ng\u00e0y ba = AB => Ta \u0111\u00e1nh BA<\/p>\n

T\u1ed5ng \u0111\u1eb7c bi\u1ec7t = s\u1ed1 ch\u1eb5n ( 22, 24, 26, 28)<\/p>\n

Ng\u00e0y 1 \u0111\u1ec1 = MN -> ta d\u1ef1 \u0111o\u00e1n L\u00f4 ng\u00e0y 3 = AB<\/p>\n

Ta l\u1ea5y 10 \u2013 B = I\u00a0 v\u00e0 gi\u1eef nguy\u00ean A => cu\u1ed1i c\u00f9ng ta \u0111\u00e1nh AI<\/p>\n

T\u1ed5ng b\u1eb1ng s\u1ed1 l\u1ebb v\u00e0 30 (21, 23, 29, 30)<\/p>\n

Ng\u00e0y 1 \u0111\u1ec3 = MN ->\u00a0d\u1ef1 \u0111o\u00e1n l\u00f4 \u0111\u1ec1<\/strong>\u00a0ng\u00e0y ba = AB => v\u00e0 \u0111\u00e1nh AB<\/p>\n

\u0110\u1eb7c bi\u1ec7t ch\u00fa \u00fd trong khi t\u00ednh to\u00e1n<\/h2>\n

\u0110\u1ec1 ng\u00e0y 1 = MN -> suy ra l\u00f4 ng\u00e0y 3\u00a0d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1<\/strong>\u00a0l\u00e0 AB.<\/p>\n

\u0110\u1ec1 ng\u00e0y 2 l\u00e0 CD. M\u00e0 MN -> CD ( MN suy ra CD t\u01b0\u01a1ng t\u1ef1 nh\u01b0 MN-> AB)<\/p>\n

t\u1ee9c l\u00e0 \u1edf \u0111\u00e2y AB=CD ( k\u1ebft qu\u1ea3 ng\u00e0y 2 = v\u1edbi l\u00f4 d\u1ef1 t\u00ednh ng\u00e0y 3)<\/p>\n

=> Ta s\u1ebd \u0111\u00e1nh BA cho ng\u00e0y t\u1edbi<\/p>\n

\u0110\u1ec1 ng\u00e0y 1 -> l\u00f4 ng\u00e0y 3 l\u00e0 AB. T\u1ed5ng ng\u00e0y 2 = xy -> AB<\/p>\n

=> Ta \u0111\u00e1nh BA<\/p>\n

VD: \u0110\u1ec1 ng\u00e0y 1 = 35 -> l\u00f4 ng\u00e0y 3 = 13. Nh\u01b0ng t\u1ed5ng ng\u00e0y 2 c\u0169ng = 35 -> 13 => suy ra ng\u00e0y \u00a0th\u1ee9 3\u00a0d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng<\/strong>\u00a0\u0111\u00e1nh l\u00f4 31<\/p>\n

\u0110\u1ec1 ng\u00e0y 1 = MN -> l\u00f4 d\u1ef1 \u0111o\u00e1n ng\u00e0y 3 = AB. \u0110\u1ec1 ng\u00e0y 2= CD. M\u00e0 C= M+x, D=N+x ( x l\u00e0 s\u1ed1 \u00e2m ho\u1eb7c d\u01b0\u01a1ng)<\/p>\n

=> Ch\u1ed1t \u0111\u00e1nh BA<\/p>\n

Nh\u1eefng c\u00e1ch t\u00ednh to\u00e1n kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p \u1edf tr\u00ean hi v\u1ecdng s\u1ebd gi\u00fap b\u1ea1n th\u00e0nh c\u00f4ng. Th\u1ef1c t\u1eadp th\u1eed nghi\u1ec7m ngay \u0111\u1ec3 ch\u1ed1t s\u1ed1 t\u1ed1i nay.<\/p>\n

k\u1ebft qu\u1ea3 soi c\u1ea7u mi\u1ec1n b\u1eafc super vip <\/span><\/h3>\n
\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u ba c\u00e0ng v\u00edp mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u b\u1ea1ch th\u1ee7 l\u00f4 2 nh\u00e1y v\u00edp mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u b\u1ea1ch th\u1ee7 \u0111\u1ec1 mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u b\u1ea1ch th\u1ee7 l\u00f4 k\u00e9p mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u b\u1ea1ch th\u1ee7 l\u00f4 mb<\/a><\/strong><\/h4>\n

\"vip-1.gif\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u c\u1eb7p s\u1ed1 3 c\u00e0ng v\u00edp mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n \u0111\u1ec1 4 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n \u0111\u1ec1 6 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n \u0111\u1ec1 8 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n \u0111\u1ec1 10 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n l\u00f4 10 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n l\u00f4 4 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u song th\u1ee7 \u0111\u1ec1 mb<\/strong><\/a><\/h4>\n<\/div>\n

k\u1ebft qu\u1ea3 soi c\u1ea7u mi\u1ec1n b\u1eafc si\u00eau chu\u1ea9n<\/span><\/h3>\n
\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u song th\u1ee7 l\u00f4 k\u00e9p mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n l\u00f4 8 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u d\u00e0n l\u00f4 6 con mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u l\u00f4 xi\u00ean 2 mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u l\u00f4 xi\u00ean 3 mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u l\u00f4 xi\u00ean 4 mb<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u song th\u1ee7 l\u00f4 mb<\/a><\/strong><\/h4>\n<\/div>\n

k\u1ebft qu\u1ea3 soi c\u1ea7u mi\u1ec1n nam si\u00eau chu\u1ea9n<\/span><\/h3>\n
\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u s\u1ed1 \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u song th\u1ee7 l\u00f4 mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u x\u00edu ch\u1ee7 mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u s\u1ed1 \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u l\u00f4 3 s\u1ed1 mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u bao l\u00f4 mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u c\u1eb7p x\u00edu ch\u1ee7 mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u \u0111\u1eb7c bi\u1ec7t mi\u1ec1n nam<\/a><\/strong><\/h4>\n

\"\"\u00a0k\u1ebft qu\u1ea3 soi c\u1ea7u gi\u1ea3i 8 mi\u1ec1n nam<\/a><\/strong><\/h4>\n<\/div>\n

k\u1ebft qu\u1ea3 soi c\u1ea7u mi\u1ec1n trung si\u00eau chu\u1ea9n<\/span><\/h3>\n
\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u s\u1ed1 \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u song th\u1ee7 l\u00f4 mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u x\u00edu ch\u1ee7 mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u s\u1ed1 \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u l\u00f4 3 s\u1ed1 mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u bao l\u00f4 mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u c\u1eb7p x\u00edu ch\u1ee7 mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u \u0111\u1eb7c bi\u1ec7t mi\u1ec1n trung<\/a><\/strong><\/h4>\n

\"\"k\u1ebft qu\u1ea3 soi c\u1ea7u gi\u1ea3i 8 mi\u1ec1n trung<\/a><\/strong><\/h4>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Ch\u01a1i x\u1ed5 s\u1ed1 kh\u00f4ng ph\u1ea3i l\u00e0 vi\u1ec7c \u0111\u01a1n gi\u1ea3n ch\u1ec9 d\u1ef1a v\u00e0o may m\u1eafn. B\u1edfi v\u1eady c\u1ea7n\u00a0d\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1<\/p>\n","protected":false},"author":1,"featured_media":10100,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[468,467],"tags":[486,487,488],"yoast_head":"\nD\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng quan s\u00e1t<\/title>\n<meta name=\"description\" content=\"D\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng quan s\u00e1t\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/batlobachthu.com\/du-doan-xo-trung-thuong-quan-sat\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng quan s\u00e1t\" \/>\n<meta property=\"og:description\" content=\"D\u1ef1 \u0111o\u00e1n x\u1ed5 s\u1ed1 tr\u00fang th\u01b0\u1edfng quan s\u00e1t\" \/>\n<meta property=\"og:url\" content=\"https:\/\/batlobachthu.com\/du-doan-xo-trung-thuong-quan-sat\/\" \/>\n<meta property=\"og:site_name\" content=\"c\u1ea7u 3 c\u00e0ng si\u00eau chu\u1ea9n \u2013 xsmb soi c\u1ea7u\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-05T05:23:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/batlobachthu.com\/wp-content\/uploads\/2024\/02\/xo-so-mb.png\" \/>\n\t<meta property=\"og:image:width\" content=\"939\" \/>\n\t<meta property=\"og:image:height\" content=\"625\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta 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