C\u1ea7u l\u00f4 r\u01a1i l\u00e0 m\u1ed9t lo\u1ea1i h\u00ecnh th\u1ee9c d\u1ec5 ch\u01a1i, d\u1ec5 tr\u00fang.<\/figcaption><\/figure>\nSoi c\u1ea7u l\u00f4 r\u01a1i 3 ng\u00e0y li\u00ean ti\u1ebfp<\/h3>\n \u00c1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u n\u00e0y, ng\u01b0\u1eddi ch\u01a1i s\u1ebd theo d\u00f5i m\u1ed9t l\u00f4 r\u01a1i li\u00ean t\u1ee5c trong v\u00f2ng 2 ng\u00e0y. N\u1ebfu trong hai ng\u00e0y li\u00ean ti\u1ebfp, l\u00f4 r\u01a1i \u0111\u00f3 \u0111\u1ec1u v\u1ec1 th\u00ec \u0111\u1ebfn ng\u00e0y th\u1ee9 3 b\u1ea1n h\u00e3y \u0111\u00e1nh con l\u00f4 \u0111\u00f3. V\u00e0 \u0111\u1ec3 t\u0103ng c\u01a1 h\u1ed9i chi\u1ebfn th\u1eafng ch\u1ee7 l\u00f4 tuy\u1ec7t \u0111\u1ed1i b\u1ea1n h\u00e3y \u0111\u00e1nh l\u1ed9n l\u1ea1i n\u1eefa nh\u00e9.<\/p>\n
\u0110\u00e1nh l\u00f4 r\u01a1i t\u1eeb \u0111\u1ec1<\/h3>\n C\u00e1ch soi c\u1ea7u n\u00e0y r\u1ea5t \u0111\u01a1n gi\u1ea3n. B\u1ea1n ch\u1ec9 c\u1ea7n l\u1ea5y s\u1ed1 \u0111\u1ec1 c\u1ee7a ng\u00e0y h\u00f4m tr\u01b0\u1edbc \u0111\u1ec3 l\u00e0m s\u1ed1 \u0111\u00e1nh l\u00f4 r\u01a1i cho ng\u00e0y h\u00f4m sau. Tuy nhi\u00ean, c\u00f3 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n b\u1ea1n c\u1ea7n ghi nh\u1edb khi \u00e1p d\u1ee5ng c\u00e1ch soi c\u1ea7u n\u00e0y. \u0110\u00f3 ch\u00ednh l\u00e0 ch\u1ec9 khi n\u00e0o th\u1ea5y l\u00f4 r\u01a1i t\u1eeb \u0111\u1ec1 xu\u1ea5t hi\u1ec7n v\u00e0i ba l\u1ea7n tr\u01b0\u1edbc \u0111\u00f3 th\u00ec b\u1ea1n m\u1edbi \u00e1p d\u1ee5ng c\u00e1ch n\u00e0y th\u00f4i nh\u00e9.<\/p>\n
V\u00ed d\u1ee5 ng\u00e0y th\u1ee9 2 \u0111\u1ec1 ra 34, th\u1ee9 3 h\u00f4m sau c\u00f3 l\u00f4 r\u01a1i 34. Th\u1ee9 4 \u0111\u1ec1 v\u1ec1 48, th\u1ee9 5 c\u00f3 l\u00f4 r\u01a1i 48. V\u1eady th\u00ec khi th\u1ee9 6 ra \u0111\u1ec1 13 th\u00ec b\u1ea1n h\u00e3y \u0111\u00e1nh l\u00f4 r\u01a1i 13 v\u00e0o th\u1ee9 7 nh\u00e9.<\/p>\n
M\u1ed9t l\u01b0u \u00fd nh\u1ecf n\u1eefa l\u00e0 th\u1eddi h\u1ea1n x\u1ea3y ra l\u00f4 r\u01a1i t\u1eeb \u0111\u1ec1 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i 5 \u0111\u1ebfn 6 ng\u00e0y ch\u1ee9 kh\u00f4ng ch\u1ec9 c\u00f3 \u201chi\u1ec7u l\u1ef1c\u201d 1 ng\u00e0y. V\u00ec th\u1ebf b\u1ea1n c\u00f3 th\u1ec3 theo con l\u00f4 n\u00e0y d\u00e0i ng\u00e0y m\u1ed9t ch\u00fat \u0111\u1ec3 \u0111\u00f3n ch\u1edd v\u1eadn may nh\u00e9.<\/p>\n
Soi c\u1ea7u l\u00f4 r\u01a1i kh\u00f4ng ra trong 7 ng\u00e0y<\/h3>\n C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u00f2i h\u1ecfi b\u1ea1n ph\u1ea3i \u0111\u1ea7u t\u01b0 th\u1eddi gian theo d\u00f5i nhi\u1ec1u m\u1ed9t ch\u00fat. B\u1ea1n s\u1ebd c\u1ea7n theo d\u00f5i 1 s\u1ed1 l\u00f4 li\u00ean ti\u1ebfp trong 7 ng\u00e0y. N\u1ebfu trong 7 ng\u00e0y n\u00e0y con l\u00f4 \u0111\u00f3 kh\u00f4ng v\u1ec1 th\u00ec \u0111\u1ebfn ng\u00e0y ti\u1ebfp theo b\u1ea1n h\u00e3y m\u1ea1nh tay ch\u1ed1t s\u1ed1 l\u00f4 \u0111\u00f3 v\u1edbi nh\u00e0 c\u00e1i nh\u00e9. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 chu\u1ea9n <\/em><\/strong>\u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng v\u00e0 th\u00e0nh c\u00f4ng r\u1ea5t nhi\u1ec1u r\u1ed3i \u0111\u1ea5y.<\/p>\n\u0110\u00e2u l\u00e0 c\u00e1ch soi c\u1ea7u l\u00f4 xi\u00ean ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 chi\u1ebfn th\u1eafng nh\u00e0 c\u00e1i?<\/h2>\n <\/p>\n
L\u00f4 xi\u00ean l\u00e0 vi\u1ec7c b\u1ea1n ti\u1ebfn h\u00e0nh \u0111\u00e1nh nhi\u1ec1u con l\u00f4 c\u00f9ng m\u1ed9t l\u00fac. V\u00e0 b\u1ea1n ch\u1ec9 chi\u1ebfn th\u1eafng khi t\u1ea5t c\u1ea3 nh\u1eefng s\u1ed1 l\u00f4 n\u00e0y \u0111\u1ec1u c\u00f3 trong k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1. So v\u1edbi vi\u1ec7c \u0111\u00e1nh l\u00f4 th\u00ec vi\u1ec7c \u0111\u00e1nh l\u00f4 xi\u00ean s\u1ebd kh\u00f3 \u0103n h\u01a1n nhi\u1ec1u. Tuy nhi\u00ean b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 gi\u00e0nh chi\u1ebfn th\u1eafng b\u1eb1ng \u201cb\u00ed k\u00edp\u201d d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n\u0110\u00e2u l\u00e0 c\u00e1ch soi c\u1ea7u l\u00f4 xi\u00ean ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 chi\u1ebfn th\u1eafng nh\u00e0 c\u00e1i?<\/figcaption><\/figure>\n\u0110\u1ec3 c\u00f3 th\u1ec3 chi\u1ebfn th\u1eafng c\u1ea7u l\u00f4 xi\u00ean b\u1ea1n ch\u1ec9 c\u1ea7n ch\u00fa \u00fd quan s\u00e1t. C\u00e1c c\u1eb7p l\u00f4 th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u0111\u1ed3ng h\u00e0nh v\u1edbi nhau nh\u1ea5t ch\u00ednh l\u00e0: 27 -72, 62 \u2013 22. Ngo\u00e0i ra, c\u1eb7p l\u00f4 77 \u2013 47, 11- 33 hay 88 \u2013 44 c\u0169ng l\u00e0 nh\u1eefng con s\u1ed1 hay xu\u1ea5t hi\u1ec7n c\u00f9ng nhau.<\/p>\n
\u0110\u1eb7c bi\u1ec7t, ng\u01b0\u1eddi ch\u01a1i h\u00e3y ch\u00fa \u00fd, n\u1ebfu h\u00f4m nay c\u00f3 l\u00f4 98 th\u00ec h\u00f4m sau th\u01b0\u1eddng s\u1ebd xu\u1ea5t hi\u1ec7n c\u1eb7p l\u00f4 xi\u00ean 38 \u2013 83. Hay c\u1eb7p l\u00f4 xi\u00ean 79 \u2013 97 s\u1ebd v\u1ec1 khi k\u1ebft qu\u1ea3 h\u00f4m tr\u01b0\u1edbc c\u00f3 l\u00f4 47. C\u00f2n khi l\u00f4 19 c\u00f3 m\u1eb7t th\u00ec ng\u00e0y h\u00f4m sau b\u1ed9 l\u00f4 xi\u00ean 87 \u2013 88 ch\u1eafc ch\u1eafn s\u1ebd gi\u00fap b\u1ea1n \u0103n ti\u1ec1n l\u1edbn.<\/p>\n
B\u1eadt m\u00ed c\u00e1ch soi c\u1ea7u \u0111\u1ec1 ho\u00e0n h\u1ea3o d\u00e0nh cho b\u1ea1n<\/h2>\n Ch\u00fang ta \u0111\u00e3 v\u1eeba \u0111\u1ec3 c\u1eb7p \u0111\u1ebfn r\u1ea5t nhi\u1ec1u c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 <\/strong>nh\u01b0ng ch\u1ee7 y\u1ebfu m\u1edbi ch\u1ec9 nh\u1eafc \u0111\u1ebfn soi c\u1ea7u l\u00f4. V\u1eady l\u00e0m sao \u0111\u1ec3 soi c\u1ea7u \u0111\u1ec1 ch\u00ednh x\u00e1c? H\u00e3y theo d\u00f5i th\u00f4ng tin d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/p>\nB\u1eb1ng c\u00e1ch d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 \u0111\u1ec1 ng\u00e0y th\u1ee9 5, ng\u01b0\u1eddi ch\u01a1i ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 soi c\u1ea7u \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/figcaption><\/figure>\nC\u00e1ch soi c\u1ea7u \u0111\u1ec1 d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 ng\u00e0y th\u1ee9 5<\/h3>\n B\u1eb1ng c\u00e1ch d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 \u0111\u1ec1 ng\u00e0y th\u1ee9 5, ng\u01b0\u1eddi ch\u01a1i ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 soi c\u1ea7u \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. Theo \u0111\u00f3, b\u1ea1n s\u1ebd ghi nh\u1edb qu\u1ea3 \u0111\u1ec1 c\u1ee7a ng\u00e0y th\u1ee9 5, sau \u0111\u00f3 l\u1ea5y ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean c\u00f4ng ho\u1eb7c tr\u1eeb \u0111i 1 \u0111\u01a1n v\u1ecb r\u1ed3i nu\u00f4i ch\u1ea1m ch\u1edd \u0111\u1ebfn ng\u00e0y th\u1ee9 5 tu\u1ea7n ti\u1ebfp theo.<\/p>\n
V\u00ed d\u1ee5 th\u1ee9 2 tu\u1ea7n n\u00e0y \u0111\u1ec1 ra con 78. B\u1ea1n s\u1ebd l\u1ea5y 7-1 =6 v\u00e0 nu\u00f4i ch\u1ea1m 6 cho \u0111\u1ebfn tu\u1ea7n sau ho\u1eb7c l\u1ea5y 7 + 1=8 v\u00e0 nu\u00f4i ch\u1ea1m 8. \u0110\u1ebfn tu\u1ea7n tu\u1ea7n ti\u1ebfp theo b\u1ea1n s\u1ebd c\u00f3 4 s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh. \u0110\u00f3 l\u00e0 67, 76, 87, 78. \u0110\u00e1nh c\u1ea3 4 s\u1ed1 n\u00e0y c\u01a1 h\u1ed9i \u0103n \u0111\u1ec1 c\u1ee7a b\u1ea1n s\u1ebd r\u1ea5t cao.<\/p>\n
C\u00e1ch soi c\u1ea7u \u0111\u1ec1 k\u00e9p<\/h3>\n B\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u \u0111\u1ec1 k\u00e9p b\u1eb1ng c\u00e1ch sau:<\/p>\n
\nN\u1ebfu gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u00f3 2 ch\u1eef gi\u1ed1ng nhau \u0111\u1ee9ng c\u1ea1nh nhau \u1edf b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o (v\u00ed d\u1ee5 22875, 36698,\u2026) th\u00ec b\u1ea1n n\u00ean nu\u00f4i d\u00e0n \u0111\u1ec1 k\u00e9p 1 tu\u1ea7n v\u00e0 \u0111\u00e1nh d\u00e0n k\u00e9p.<\/li>\n N\u1ebfu th\u1ea5y k\u1ebft qu\u1ea3 gi\u1ea3i 7 c\u00f3 2 s\u1ed1 trong b\u1ed9 c\u00e1c s\u1ed1: 05, 50, 16, 61, 27, 72, 38, 83, 49, 9 th\u00ec ng\u00e0y h\u00f4m sau \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng r\u1ea5t cao l\u00e0 v\u1ec1 k\u00e9p<\/li>\n<\/ul>\nB\u1ea1n c\u0169ng c\u00f3 th\u1ec3 soi c\u1ea7u \u0111\u1ec1 k\u00e9p d\u1ec5 d\u00e0ng qua nh\u1eefng c\u00e1ch \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u<\/figcaption><\/figure>\nTr\u00ean \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 <\/strong>r\u1ea5t chu\u1ea9n x\u00e1c m\u00e0 Lodeonline.org mu\u1ed1n gi\u1edbi thi\u1ec7u cho b\u1ea1n \u0111\u1ecdc. B\u1ea1n h\u00e3y tham kh\u1ea3o th\u1eadt k\u1ef9 nh\u1eefng th\u00f4ng tin n\u00e0y nh\u00e9. Hy v\u1ecdng \u0111\u00e2y s\u1ebd l\u00e0 c\u01a1 s\u1edf tin c\u1eady gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p nhi\u1ec1u may m\u1eafn khi ch\u01a1i l\u00f4 \u0111\u1ec1 v\u00e0 chi\u1ebfn th\u1eafng nh\u00e0 c\u00e1i.<\/p>\n