Soi c\u1ea7u song th\u1ee7 l\u00f4 gh\u00e9p c\u1ea7u t\u00ecm s\u1ed1 \u0111\u1ec1 tr\u00fang<\/figcaption><\/figure>\n\u0110\u1ec3 xem l\u00f4 40 v\u00e0 47 c\u00f3 l\u1ed9n kh\u00f4ng c\u00e1c b\u1ea1n x\u00e9t c\u00e1c ch\u1eef s\u1ed1 trong l\u00f4 \u0111\u00f3.<\/p>\n
X\u00e9t v\u00ed d\u1ee5 ta c\u00f3 :<\/p>\n
L\u00f4 40<\/strong> : Ch\u00fang ta th\u1ea5y s\u1ed1 4 l\u1edbn 0 (trong b\u1ea3ng ch\u1eef c\u00e1i s\u1ed1 0 \u0111\u1ee9ng tr\u01b0\u1edbc s\u1ed1 4) s\u1ed1 nh\u1ecf ph\u1ea3i \u0111\u1ee9ng tr\u01b0\u1edbc s\u1ed1 l\u1edbn n\u00ean s\u1ebd l\u00e0 04. \u0110\u00e2y l\u00e0 l\u00f4 l\u1ed9n n\u00ean l\u00f4 45 c\u0169ng ph\u1ea3i l\u1ed9n.=> Ta t\u00ecm \u0111\u01b0\u1ee3c l\u00f4 \u0111\u1ea7u ti\u00ean c\u1ea7n \u0111\u00e1nh 54.<\/p>\nL\u00f4 47<\/strong> : Ch\u00fang ta th\u1ea5y 4 < 7 (trong b\u1ea3ng ch\u1eef c\u00e1i s\u1ed1 4 \u0111\u1ee9ng tr\u01b0\u1edbc s\u1ed1 7) s\u1ed1 nh\u1ecf ph\u1ea3i \u0111\u1ee9ng tr\u01b0\u1edbc s\u1ed1 l\u1edbn n\u00ean l\u00f4 n\u00e0y kh\u00f4ng l\u1ed9n v\u1eabn l\u00e0 47. L\u00f4 47 kh\u00f4ng l\u1ed9n n\u00ean l\u00f4 46 c\u0169ng kh\u00f4ng l\u1ed9n. Ta t\u00ecm \u0111\u01b0\u1ee3c l\u00f4 th\u1ee9 2 c\u1ea7n \u0111\u00e1nh l\u00e0 46 nhe.<\/p>\nNh\u01b0 v\u1eady \u1edf b\u01b0\u1edbc 2 c\u00e1c b\u1ea1n t\u00ecm \u0111\u01b0\u1ee3c l\u00f4 45 46 th\u00ec sau b\u01b0\u1edbc 3 ta \u0111\u00e3 t\u00ecm ra \u0111\u01b0\u1ee3c 2 l\u00f4 c\u1ea7n \u0111\u00e1nh s\u1ebd l\u00e0 54 v\u00e0 46.<\/p>\n
K\u1ebft qu\u1ea3 ng\u00e0y 25\/6\/2024 l\u00e0 : L\u00f4 54 \u0111\u00e3 n\u1ed5.<\/p>\n
B\u01b0\u1edbc 4: C\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t d\u01b0\u1edbi<\/strong><\/h3>\nTr\u01b0\u1eddng h\u1ee3p th\u1ee9 1<\/strong> : S\u1ed1 B c\u00f3 2 s\u1ed1 cu\u1ed1i gi\u1ed1ng nhau. ch\u00fang ta s\u1ebd b\u1ecf c\u1ea7u n\u00e0y kh\u00f4ng n\u00ean \u0111\u00e1nh.
\nVD<\/strong> th\u1ef1c t\u1ebf : Ng\u00e0y 23\/6\/2024 s\u1ed1 B l\u00e0 76855. Ch\u00fang ta th\u1ea5y 2 s\u1ed1 cu\u1ed1i c\u1ee7a B l\u00e0 55 n\u00ean s\u1ebd b\u1ecf c\u1ea7u n\u00e0y.<\/p>\n