C\u00e2u 13:<\/b>\u00a0\u00d4ng A g\u1eedi ti\u1ebft ki\u1ec7m m\u1ed9t s\u1ed1 ti\u1ec1n v\u00e0o ng\u00e2n h\u00e0ng v\u1edbi h\u00ecnh th\u1ee9c l\u00e3i k\u00e9p v\u00e0 l\u00e3i su\u1ea5t 6,8% m\u1ed9t n\u0103m. \u00d4ng A mu\u1ed1n sau 5 n\u0103m c\u00f3 th\u1ec3 r\u00fat h\u1ebft s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m tr\u00ean (c\u1ea3 g\u1ed1c l\u1eabn l\u00e3i) \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u00edt nh\u1ea5t 100 tri\u1ec7u \u0111\u1ed3ng. H\u1ecfi l\u00fac \u0111\u1ea7u \u00f4ng A ph\u1ea3i g\u1eedi s\u1ed1 ti\u1ec1n t\u1ed1i thi\u1ec3u l\u00e0 bao nhi\u00eau? Bi\u1ebft r\u1eb1ng s\u1ed1 ti\u1ec1n \u00f4ng A g\u1eedi l\u00e0 s\u1ed1 tr\u00f2n tri\u1ec7u \u0111\u1ed3ng.<\/p>\n
A. 70 tri\u1ec7u \u0111\u1ed3ng\u00a0\u00a0\u00a0B. 71 tri\u1ec7u \u0111\u1ed3ng\u00a0\u00a0\u00a0C. 72 tri\u1ec7u \u0111\u1ed3ng\u00a0\u00a0\u00a0D. 73 tri\u1ec7u \u0111\u1ed3ng<\/p>\n
C\u00e2u 14:<\/b>\u00a0T\u00ecm \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1<\/p>\n
<\/p>\n
C\u00e2u 15:<\/b>\u00a0T\u00ecm c\u00e1c gi\u00e1 tr\u1ecb x th\u1ecfa m\u00e3n<\/p>\n
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C\u00e2u 16:<\/b>\u00a0T\u00ednh t\u00edch c\u00e1c nghi\u1ec7m c\u1ee7a ph\u01b0\u01a1ng tr\u00ecnh 22x<\/sup>\u00a0– 8.2x<\/sup>\u00a0+ 12 = 0<\/p>\n <\/p>\n C\u00e2u 17:<\/b>\u00a0Gi\u1ea3 s\u1eed x l\u00e0 nghi\u1ec7m c\u1ee7a ph\u01b0\u01a1ng tr\u00ecnh<\/p>\n <\/p>\n A. 1\/2\u00a0\u00a0\u00a0B. 1\u00a0\u00a0\u00a0C. 2\u00a0\u00a0\u00a0D. 4<\/p>\n C\u00e2u 18:<\/b>\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh 9x<\/sup>\u00a0\u2264 2.3x<\/sup>\u00a0+ 3<\/p>\n A. 1\/3 \u2264 x \u2264 1\u00a0\u00a0\u00a0B. 1\/3 \u2264 x \u2264 3\u00a0\u00a0\u00a0C. x \u2264 1 \u00a0\u00a0\u00a0D. -1 \u2264 x \u22643<\/p>\n H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0110\u00e1p \u00e1n<\/b><\/p>\n C\u00e2u 13:<\/b><\/p>\n G\u1ecdi P l\u00e0 s\u1ed1 ti\u1ec1n \u00f4ng A g\u1eedi l\u00fac \u0111\u1ea7u. \u0110\u1ec3 r\u00fat \u0111\u01b0\u1ee3c 100 tri\u1ec7u \u0111\u1ed3ng sau 5 n\u0103m ta ph\u1ea3i c\u00f3<\/p>\n P(1 + 0,068)5<\/sup>\u00a0= 100000000<\/p>\n <\/p>\n V\u00ec s\u1ed1 ti\u1ec1n g\u1eedi l\u00e0 tr\u00f2n tri\u1ec7u \u0111\u1ed3ng n\u00ean \u00f4ng A ph\u1ea3i g\u1eedi t\u1ed1i thi\u1ec3u 72 tri\u1ec7u \u0111\u1ed3ng.<\/p>\n C\u00e2u 14:<\/b><\/p>\n <\/p>\n C\u00e2u 15:<\/b><\/p>\n <\/p>\n <=> 16x – 1<\/sup>\u00a0= 164x<\/sup>\u00a0<=> x – 1 = 4x <=> x = -1\/3<\/p>\n C\u00e2u 16:<\/b><\/p>\n \u0110\u1eb7t t = 2x<\/sup>\u00a0nh\u1eadn \u0111\u01b0\u1ee3c ph\u01b0\u01a1ng tr\u00ecnh t2<\/sup>\u00a0– 8t + 12 = 0<\/p>\n <\/p>\n T\u00edch hai nghi\u1ec7m b\u1eb1ng 1 + log3.log2<\/p>\n C\u00e2u 17:<\/b><\/p>\n <\/p>\n <=> log2<\/sub>x + log2<\/sub>x = 4 <=> log2<\/sub>x = 2 <=> x = 22<\/sup>\u00a0= 4<\/p>\n <\/p>\n C\u00e2u 18:<\/b><\/p>\n B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 cho t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 32x<\/sup>\u00a0– 2.3x<\/sup>\u00a0– 3 \u2264 0<\/p>\n \u0110\u1eb7t t = 3x<\/sup>\u00a0> 0, nh\u1eadn \u0111\u01b0\u1ee3c t2<\/sup>\u00a0– 2t – 3 \u2264 0 <=> -1 \u2264 t \u2264 3 <=> t \u2264 3 <=> 3x<\/sup>\u00a0\u2264 3 <=> x \u2264 1<\/p>\n","protected":false},"excerpt":{"rendered":" C\u00e2u 13:\u00a0\u00d4ng A g\u1eedi ti\u1ebft ki\u1ec7m m\u1ed9t s\u1ed1 ti\u1ec1n v\u00e0o ng\u00e2n h\u00e0ng v\u1edbi h\u00ecnh th\u1ee9c l\u00e3i k\u00e9p v\u00e0 l\u00e3i su\u1ea5t 6,8% m\u1ed9t n\u0103m. \u00d4ng A mu\u1ed1n sau 5 n\u0103m c\u00f3 th\u1ec3 r\u00fat h\u1ebft s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m tr\u00ean (c\u1ea3 g\u1ed1c l\u1eabn l\u00e3i) \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u00edt nh\u1ea5t 100 tri\u1ec7u \u0111\u1ed3ng. H\u1ecfi l\u00fac \u0111\u1ea7u \u00f4ng A […]<\/p>\n","protected":false},"author":3,"featured_media":27184,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[157],"tags":[1447,1446],"yoast_head":"\n\n\n
\n 13-C<\/td>\n 14-D<\/td>\n 15-C<\/td>\n 16-C<\/td>\n 17-A<\/td>\n 18-C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n