Nghi\u00ean c\u1ee9u m\u1ed9t c\u00e1ch khoa h\u1ecdc trong v\u1ea5n \u0111\u1ec1 soi c\u1ea7u l\u00f4 \u0111\u1ec1 online <\/strong>\u0111\u01b0\u01a1c nhi\u1ec1u ng\u01b0\u1eddi quan t\u00e2m b\u1edfi tr\u00ean m\u1ea1ng r\u1ea5t nhi\u1ec1u \u00a0 nh\u01b0ng ch\u01b0a \u0111\u01b0\u1ee3c h\u1ec7 th\u1ed1ng h\u00f3a m\u1ed9t c\u00e1ch khoa h\u1ecdc, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u00a0b\u00e0i h\u01b0\u1edbng d\u1ea9n<\/p>\n + Con s\u1ed1 gi\u1eefa gi\u1ea3i nh\u1ea5t ng\u00e0y ch\u1ee7 nh\u1eadt tu\u1ea7n th\u1ee9 n \u0111\u00e1nh \u0111\u1ebfn th\u1ee9 7 tu\u1ea7n n+1.<\/p>\n V\u00ed d\u1ee5:<\/strong><\/p>\n ng\u00e0y CN-31\/8 c\u00f3 gi\u1ea3i nh\u1ea5t 97211 \u2013> T3=25,T5=22<\/p>\n ng\u00e0y CN-07\/9 c\u00f3 gi\u1ea3i nh\u1ea5t 39855 \u2013>> T5=98, T6=84<\/p>\n ng\u00e0y CN-14\/9 c\u00f3 gi\u1ea3i nh\u1ea5t 35501 \u2013>> T6=54<\/p>\n L\u1ea5y t\u1ed5ng c\u1ee7a \u0111\u1ec1 ng\u00e0y CN gh\u00e9p v\u1edbi s\u1ed1 \u0111\u00edt c\u1ee7a \u0111\u1ec1 ng\u00e0y th\u1ee9 s\u00e1u (tu\u1ea7n n) th\u00e0nh b\u1ed9 s\u1ed1 o\u00e1nh t\u1eeb th\u1ee9 2 \u0111\u1ebfn h\u1ebft tu\u1ea7n tu\u1ea7n n+1. C\u1ea7u n\u00e0y ch\u1ea1y kh\u00e1 \u0111\u1ec1u c\u1ee9 \u0103n kho\u1ea3ng 3->4 tu\u1ea7n th\u00ec ngh\u1ec9 1->2 tu\u1ea7n:<\/p>\n V\u00ed d\u1ee5 nh\u00e1:<\/strong><\/p>\n Th\u1ee9 6 ng\u00e0y 29\/8 c\u00f3 \u0111\u1ec1 l\u00e0 50<\/p>\n CN ng\u00e0y 31\/8 c\u00f3 \u0111\u1ec1 l\u00e0 38 = t\u1ed5ng 1 ==>> B\u1ed9 01 \u2013>>> \u0110\u1ec1 ng\u00e0y 01\/9 \u0111\u00e3 n\u1ed5 60.<\/p>\n Th\u1ee9 6 ng\u00e0y 05\/9 c\u00f3 \u0111\u1ec1 l\u00e0 78<\/p>\n CN ng\u00e0y 07\/9 c\u00f3 \u0111\u1ec1 l\u00e0 11 = t\u1ed5ng 2==>>B\u1ed9 23 \u2013>>> \u0110\u1ec1 ng\u00e0y 15\/9 \u0111\u00e3 n\u1ed5 32<\/p>\n Th\u1ee9 6 ng\u00e0y 12\/9 c\u00f3 \u0111\u1ec1 l\u00e0 84<\/p>\n CN ng\u00e0y 14\/9 c\u00f3 \u0111\u1ec1 l\u00e0 39 = t\u1ed5ng 12 ==>>B\u1ed9 14, 24 \u2013>>> Tu\u1ea7n n\u00e0y ngh\u1ec9<\/p>\n L\u1ea5y t\u1ed5ng gi\u1ea3i \u0110B ng\u00e0y CN tu\u1ea7n n l\u00e0m b\u1ed9 \u0111\u1ec1 \u0111\u00e1nh \u0111\u1ebfn h\u1ebft tu\u1ea7n \u0111\u00f3.<\/p>\n C\u1ea7u n\u00e0y \u0103n 3-5 tu\u1ea7n r\u1ed3i ngh\u1ec9 2-3 tu\u1ea7n r\u1ed3i m\u00fac t\u00edp.<\/p>\n C\u1ea7u n\u00e0y r\u1ea5t d\u1ec5 \u0111\u00e1nh, c\u1ee9 o\u00e1nh th\u1eb3ng t\u1ed5ng c\u1ee7a gi\u1ea3i \u0110B ho\u1eb7c o\u00e1nh b\u00f3ng 1 s\u1ed1 l\u00e0 \u0111\u1edbp li\u1ec1n.<\/p>\n V\u00ed d\u1ee5:<\/strong><\/p>\n CN-31\/8-gi\u1ea3i \u0110B: 50483 = t\u1ed5ng 20 ==> ng\u00e0y 02\/9 n\u1ed5 25<\/p>\n CN-07\/9-gi\u1ea3i \u0110B: 25511 = t\u1ed5ng 14 ==> ng\u00e0y 10\/9 n\u1ed5 14<\/p>\n CN-14\/9-gi\u1ea3i \u0110B: 07439 = t\u1ed5ng 23 ==> ng\u00e0y 15\/9 n\u1ed5 32<\/p>\n CN-21\/9-gi\u1ea3i \u0110B: 63727 = t\u1ed5ng 25 ==> Ch\u00fa \u00fd c\u00f3 th\u1ec3 \u0111\u1ec1 v\u1ec1 020, 252, 575<\/p>\n ( Tu\u1ea7n t\u1eeb 22\/9 \u0111\u1ebfn 28\/9 c\u00f3 th\u1ec3 \u0111\u1ec1 v\u1ec1 020, 252, 575<\/p>\n L\u1ea5y 2 s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i nh\u1ea5t ng\u00e0y th\u1ee9 2 tu\u1ea7n n l\u00e0m b\u1ed9 s\u1ed1 \u0111\u00e1nh \u0111\u1ebfn th\u1ee9 2 tu\u1ea7n n+1.<\/p>\n C\u1ea7u n\u00e0y \u0103n r\u1ea5t \u0111\u1ec1u, c\u1ee9 \u0103n 4-7 tu\u1ea7n th\u00ec ngh\u1ec9 1-2 tu\u1ea7n r\u1ed3i \u0103n ti\u1ebfp. V\u00ec v\u1eady khi th\u1ea5y hi\u1ec7n t\u01b0\u1ee3ng b\u1eaft c\u1ea7u th\u00ec fang.<\/p>\n V\u00ed d\u1ee5:<\/strong><\/p>\n Th\u1ee9 2-01\/9 c\u00f3 gi\u1ea3i nh\u1ea5t 32203 \u2013> l\u1ea5y 32 l\u00e0m b\u1ed9 \u0111\u1ec1 ==> 5\/9 n\u1ed5 78<\/p>\n Th\u1ee9 2-08\/9 c\u00f3 gi\u1ea3i nh\u1ea5t 87873 \u2013> l\u1ea5y 78 l\u00e0m b\u1ed9 \u0111\u1ec1 ==> 15\/9 n\u1ed5 32<\/p>\n Th\u1ee9 2-15\/9 c\u00f3 gi\u1ea3i nh\u1ea5t 15381 \u2013> l\u1ea5y 15 l\u00e0m b\u1ed9 \u0111\u1ec1 ==> 17\/9 n\u1ed5 06, ng\u00e0y 20\/9 n\u1ed5 01<\/p>\n Th\u1ee9 2-22\/9 c\u00f3 gi\u1ea3i nh\u1ea5t 27444 \u2013> l\u1ea5y 27 l\u00e0m b\u1ed9 \u0111\u1ec1 ==> C\u00f3 th\u1ec3 \u0111\u1ec1 v\u1ec1 k\u00e9p 22, 77, 272<\/p>\n ( Tu\u1ea7n t\u1eeb 23\/9 \u0111\u1ebfn 29\/9 c\u00f3 th\u1ec3 \u0111\u1ec1 v\u1ec1 k\u00e9p 22, 77, 272 \u2013 ch\u00fa \u00fd ch\u00fa \u00fd<\/p>\n Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y x\u00e1c \u0111\u1ecbnh gi\u00fap ng\u01b0\u1eddi ch\u01a1i \u0111\u01b0\u1ee3c 1 s\u1ed1 s\u1ebd tham gia v\u00e0o \u0111\u1ec1.<\/p>\n N\u1ed9i dung:<\/p>\n a, l\u1ea5y 2 s\u1ed1 gi\u1ea3i 7 cu\u1ed1i c\u00f9ng l\u00e0m s\u1ed1 ch\u1ea1m c\u1ea7u.<\/p>\n \u2013 \u0102n li\u1ec1n ng\u00e0y; th\u00f4ng th\u01b0\u1eddng 2-4 ng\u00e0y li\u1ec1n<\/p>\n V\u00ed d\u1ee5: 3 ng\u00e0y 18, 19, 20\/9 \u0111\u1ec1u l\u1ea5y 1 s\u1ed1 cu\u1ed1i gi\u1ea3i 7.<\/p>\n \u2013 \u0102n c\u00e1ch ng\u00e0y th\u00ec c\u1ea7u d\u00e0i h\u01a1n 5-8 ng\u00e0y (ho\u1eb7c ch\u1ec9 \u0103n v\u00e0o ng\u00e0y ch\u1eb5n, ho\u1eb7c ch\u1ec9 v\u00e0o ng\u00e0y l\u1ebb)<\/p>\n V\u00ed d\u1ee5:<\/strong><\/p>\n 18\/8-gi\u1ea3i 7 l\u00e0 31 \u2013> \u0111\u1ec1 19\/8 n\u1ed5 38<\/p>\n 20\/8-gi\u1ea3i 7 l\u00e0 82 \u2013> \u0111\u1ec1 21\/8 n\u1ed5 27<\/p>\n 22\/8-gi\u1ea3i 7 l\u00e0 90 \u2013> \u0111\u1ec1 23\/8 n\u1ed5 20<\/p>\n<\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n <\/main><\/p>\n SOI C\u1ea6U MB B\u1ea0CH TH\u1ee6 L\u00d4 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB B\u1ea0CH TH\u1ee6 L\u00d4 2 NH\u00c1Y CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB SONG TH\u1ee6 L\u00d4 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB B\u1ea0CH TH\u1ee6 L\u00d4 K\u00c9P CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB SONG TH\u1ee6 L\u00d4 K\u00c9P CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB B\u1ea0CH TH\u1ee6 \u0110\u1ec0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB SONG TH\u1ee6 \u0110\u1ec0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N \u0110\u1ec0 4 S\u1ed0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N \u0110\u1ec0 6 S\u1ed0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N \u0110\u1ec0 8 S\u1ed0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N \u0110\u1ec0 10 S\u1ed0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 4 S\u1ed0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 6 S\u1ed0 CAO C\u1ea4P<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 8 S\u1ed0 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 XI\u00caN 2 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 XI\u00caN 3 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 XI\u00caN 4 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB 3 C\u00c0NG SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N 3 C\u00c0NG 2 S\u1ed0 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB D\u00c0N L\u00d4 10 S\u1ed0 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MB \u0110\u1ec0 \u0110\u1ea6U \u0110U\u00d4I SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN X\u1ec8U CH\u1ee6 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN GI\u1ea2I \u0110\u1eb6C BI\u1ec6T SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN GI\u1ea2I 8 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN BAO L\u00d4 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN C\u1eb7p X\u1ec8U CH\u1ee6 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN SONG TH\u1ee6 L\u00d4 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN \u0110\u1ea6U \u0110U\u00d4I GI\u1ea2I 8 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN \u0110\u1ea6U \u0110U\u00d4I \u0110\u1eb6C BI\u1ec6T SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MN L\u00d4 3 S\u1ed0 SI\u00caU V\u00cdP<\/span><\/strong><\/a><\/p>\n SOI C\u1ea6U MT X\u1ec8U CH\u1ee6 SI\u00caU V\u00cdP<\/strong><\/a><\/p>\n SOI C\u1ea6U MT GI\u1ea2I \u0110\u1eb6C BI\u1ec6T SI\u00caU V\u00cdP<\/strong><\/a><\/p>\n SOI C\u1ea6U MT GI\u1ea2I 8 SI\u00caU V\u00cdP<\/strong><\/a><\/p>\n SOI C\u1ea6U MT BAO L\u00d4 SI\u00caU V\u00cdP<\/strong><\/a><\/p>\n SOI C\u1ea6U MT C\u1eb7p X\u1ec8U CH\u1ee6 SI\u00caU V\u00cdP<\/strong><\/a><\/p>\n SOI C\u1ea6U MT SONG TH\u1ee6 L\u00d4 SI\u00caU V\u00cdP<\/strong><\/a><\/p>\n SOI C\u1ea6U MT \u0110\u1ea6U \u0110U\u00d4I GI\u1ea2I 8 SI\u00caU V\u00cdP<\/strong><\/a><\/p>\nC\u1ea7u Ch\u1ea1m S\u1ed1 1 : kh\u00f4ng th\u1ec3 b\u1ecf, c\u1ea7u n\u00e0y \u0103n \u1ed5n \u0111\u1ecbnh 9\/10 tu\u1ea7n li\u1ec1n.<\/b><\/h2>\n
C\u1ea7u Ch\u1ea1m S\u1ed1 2<\/b><\/h2>\n
C\u1ea7u Ch\u1ea1m S\u1ed1 3<\/b><\/h2>\n
C\u1ea7u Ch\u1ea1m S\u1ed1 4<\/b><\/h2>\n
C\u1ea7u Ch\u1ea1m S\u1ed1 5 \u2013 Ph\u01b0\u01a1ng ph\u00e1p ch\u1ea1m gi\u1ea3i 7<\/b><\/h2>\n
SOI C\u1ea6U CAO C\u1ea4P<\/h3>\n
SOI C\u1ea6U MI\u1ec0N B\u1eaeC<\/h3>\n
SOI C\u1ea6U MI\u1ec0N NAM<\/h3>\n
SOI C\u1ea6U MI\u1ec0N TRUNG<\/h3>\n