Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
C\u00e2u 2 (1.0 \u0111i\u1ec3m<\/em>).<\/strong><\/p>\n T\u00ecm gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t v\u00e0 nh\u1ecf nh\u1ea5t c\u1ee7a h\u00e0m s\u1ed1: y = x<\/p>\n \u2013 2x<\/p>\n + 3 tr\u00ean \u0111o\u1ea1n [0;4]<\/p>\n C\u00e2u 4 (1 \u0111i\u1ec3m) <\/strong><\/p>\n b) Trong b\u1ed9 m\u00f4n To\u00e1n, th\u1ea7y gi\u00e1o c\u00f3 40 c\u00e2u h\u1ecfi kh\u00e1c nhau g\u1ed3m 5 c\u00e2u h\u1ecfi kh\u00f3, 15 c\u00e2u h\u1ecfi trung b\u00ecnh, 20 c\u00e2u h\u1ecfi d\u1ec5. M\u1ed9t ng\u00e2n h\u00e0ng \u0111\u1ec1 thi m\u1ed7i \u0111\u1ec1 thi c\u00f3 7 c\u00e2u h\u1ecfi \u0111\u1ef1\u01a1c ch\u1ecdn t\u1eeb 40 c\u00e2u h\u1ecfi \u0111\u00f3. T\u00ednh x\u00e1c su\u1ea5t \u0111\u1ec3 ch\u1ecdn \u0111\u01b0\u1ee3c \u0111\u1ec1 thi t\u1eeb ng\u00e2n h\u00e0ng \u0111\u1ec1 n\u00f3i tr\u00ean nh\u1ea5t thi\u1ebft ph\u1ea3i c\u00f3 \u0111\u1ee7 3 lo\u1ea1i c\u00e2u h\u1ecfi (kh\u00f3, trung b\u00ecnh, d\u1ec5) v\u00e0 s\u1ed1 c\u00e2u h\u1ecfi d\u1ec5 kh\u00f4ng \u00edt h\u01a1n 4.<\/p>\n <\/p>\n <\/p>\n<\/p>\n T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":" \u0110\u00e1p \u00e1n \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n l\u1ea7n 1 n\u0103m 2016 – THPT Vi\u1ec7t Tr\u00ec, c\u00e1c em tham kh\u1ea3o d\u01b0\u1edbi \u0111\u00e2y: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 2 (1.0 \u0111i\u1ec3m). T\u00ecm gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t v\u00e0 nh\u1ecf nh\u1ea5t c\u1ee7a h\u00e0m s\u1ed1: y = x 4 \u2013 2x 2 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n\u0110\u00e1p \u00e1n \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n n\u0103m 2016 – THPT Vi\u1ec7t Tr\u00ec<\/h2>\n