\u0110\u1ec1 thi th\u1eed To\u00e1n S\u1edf Gi\u00e1o D\u1ee5c \u0110\u00e0 N\u1eb5ng n\u0103m 2017 c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft. M\u1edbi \u0111\u00e2y S\u1edf Gi\u00e1o D\u1ee5c \u0110\u00e0 N\u1eb5ng \u0111\u00e3 t\u1ed5 ch\u1ee9c k\u1ef3 thi th\u1eed THPT Qu\u1ed1c Gia m\u00f4n To\u00e1n. \u0110\u1ec1 thi g\u1ed3m 50 c\u00e2u v\u1edbi th\u1eddi gian 90 ph\u00fat.<\/strong><\/em><\/p>\n

M\u1ed9t s\u1ed1 c\u00e2u trong \u0111\u1ec1 thi th\u1eed S\u1edf Gi\u00e1o D\u1ee5c \u0110\u00e0 N\u1eb5ng:
\nC\u00e2u 2: Cho h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019 c\u1ea1nh a. T\u00ednh di\u1ec7n t\u00edch S c\u1ee7a m\u1eb7t c\u1ea7u ngo\u1ea1i ti\u1ebfp h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019.<\/p>\n

C\u00e2u 11: Trong kh\u00f4ng gian v\u1edbi h\u1ec7 to\u1ea1 \u0111\u1ed9 Oxyz, cho hai \u0111i\u1ec3m A(2,-3,2) v\u00e0 B(3,5,4). T\u00ecm to\u1ea1 \u0111\u1ed9 \u0111i\u1ec3m M tr\u00ean tr\u1ee5c Oz sao cho MA^2 + MB^2 \u0111\u1ea1t gi\u00e1 tr\u1ecb nh\u1ecf nh\u1ea5t.<\/p>\n

C\u00e2u 17: Qua m\u1ed9t \u0111i\u1ec3m n\u1eb1m trong m\u1eb7t c\u1ea7u ngo\u1ea1i ti\u1ebfp c\u00f3 th\u1ec3 d\u1ef1ng \u0111\u01b0\u1ee3c nhi\u1ec1u nh\u1ea5t bao nhi\u00eau m\u1eb7t ph\u1eb3ng ti\u1ebfp x\u00fac v\u1edbi m\u1eb7t c\u1ea7u \u0111\u00f3.<\/p>\n

C\u00e2u 36: M\u1ed9t ng\u01b0\u1eddi g\u1eedi ti\u1ebft ki\u1ec7m 800 tri\u1ec7u \u0111\u1ed3ng v\u00e0o m\u1ed9t ng\u00e2n h\u00e0ng. L\u00e3i su\u1ea5t 0.5% m\u1ed9t th\u00e1ng (l\u00e3i su\u1ea5t t\u00ednh theo t\u1eebng th\u00e1ng v\u00e0 c\u1ed9ng d\u1ed3n v\u00e0o g\u1ed1c). K\u1ec3 t\u1eeb l\u00fac g\u1eedi c\u1ee9 sau 1 th\u00e1ng anh ta r\u00fat 10 tri\u1ec7u \u0111\u1ed3ng \u0111\u1ec3 chi ti\u00eau. Th\u00e1ng cu\u1ed1i c\u00f9ng n\u1ebfu kh\u00f4ng \u0111\u1ee7 10 tri\u1ec7u th\u00ec r\u00fat h\u1ebft. H\u1ecfi sau bao l\u00e2u k\u1ec3 t\u1eeb ng\u00e0y g\u1eedi ti\u1ec1n, t\u00e0i kho\u1ea3n ti\u1ec1n g\u1eedi c\u1ee7a ng\u01b0\u1eddi \u0111\u00f3 v\u1ec1 0 \u0111\u1ed3ng. Gi\u1ea3 s\u1eed l\u00e3i su\u1ea5t kh\u00f4ng thay \u0111\u1ed5i trong su\u1ed1t qu\u00e1 tr\u00ecnh ng\u01b0\u1eddi \u0111\u00f3 g\u1eedi ti\u1ebft ki\u1ec7m.<\/p>\n

A. 101 th\u00e1ng B. 103 th\u00e1ng C. 100 th\u00e1ng D. 102 th\u00e1ng.<\/p>\n

C\u00e2u 40: Trong m\u00f9a cao \u0111i\u1ec3m du l\u1ecbch, m\u1ed9t t\u1ed5 h\u1ee3p nh\u00e0 ngh\u1ec9 \u1edf \u0110\u00e0 N\u1eb5ng g\u1ed3m 100 ph\u00f2ng \u0111\u1ed3ng gi\u00e1 lu\u00f4n lu\u00f4n k\u00edn ph\u00f2ng. Gi\u00e1 thu\u00ea l\u00e0 560 \u0111\u1ed3ng\/ph\u00f2ng. Qua kh\u1ea3o s\u00e1t c\u00e1c n\u0103m tr\u01b0\u1edbc b\u1ed9 ph\u1eadn kinh doanh c\u1ee7a nh\u00e0 ngh\u1ec9 th\u1ea5y r\u1eb1ng. C\u1ee9 t\u1eb1ng gi\u00e1 l\u00ean x% (x>=0) so v\u1edbi l\u00fac k\u00edn ph\u00f2ng. th\u00ec s\u1ed1 ph\u00f2ng gi\u1ea3m \u0111i 4x\/5 %. H\u1ecfi nh\u00e0 ngh\u1ec9 ph\u1ea3i ni\u00eam y\u1ebft gi\u00e1 ph\u00f2ng l\u00e0 bao nhi\u00eau \u0111\u1ec3 \u0111\u1ea1t doanh thu cao nh\u1ea5t.<\/p>\n

<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0110\u1ec1 thi th\u1eed To\u00e1n S\u1edf Gi\u00e1o D\u1ee5c \u0110\u00e0 N\u1eb5ng n\u0103m 2017 c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft. M\u1edbi \u0111\u00e2y S\u1edf Gi\u00e1o D\u1ee5c \u0110\u00e0 N\u1eb5ng \u0111\u00e3 t\u1ed5 ch\u1ee9c k\u1ef3 thi th\u1eed THPT Qu\u1ed1c Gia m\u00f4n To\u00e1n. \u0110\u1ec1 thi g\u1ed3m 50 c\u00e2u v\u1edbi th\u1eddi gian 90 ph\u00fat. M\u1ed9t s\u1ed1 c\u00e2u trong \u0111\u1ec1 thi th\u1eed S\u1edf Gi\u00e1o D\u1ee5c \u0110\u00e0 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n