{"common":{"save":0,"post_id":"1009","level":1,"total":20,"point":5,"point_extra":0},"segment":[{"id":"351","post_id":"1009","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0o \u00f4 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-14"],["25"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n $-0,56$ d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n <br\/> <br\/> <u> K\u1ebft qu\u1ea3 <\/u>:<div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n<\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> D\u1ef1a v\u00e0o nh\u1eadn x\u00e9t: <br\/> * Ph\u1ea7n th\u1eadp ph\u00e2n c\u00f3 n ch\u1eef s\u1ed1 th\u00ec \u1edf m\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 l\u00e0 $10^{n}.$ <br\/> * Cu\u1ed1i c\u00f9ng r\u00fat g\u1ecdn ph\u00e2n s\u1ed1 v\u1eeba l\u1eadp \u0111\u01b0\u1ee3c. <\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $-0,56 = \\dfrac{-56}{100} = \\dfrac{-14}{25}$ <br\/> <br\/> <span class='basic_pink'> K\u1ebft qu\u1ea3 l\u00e0 $\\dfrac{-14}{25}$ <\/span><\/span>"}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:46"},{"id":"352","post_id":"1009","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" T\u00ecm $x$ bi\u1ebft: <br\/> $x + 2,9 = 0,3$ ","select":["A. $x = -2,6$ ","B. $x = 2,6$","C. $x = 3,2$ ","D. $x = -3,2$ "],"hint":"","explain":" Ta c\u00f3: $ x + 2,9 = 0,3 \\\\ \\Rightarrow x = 0,3 - 2,9 \\\\ \\Rightarrow x = -2,6 $ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:46"},{"id":"353","post_id":"1009","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='img\/7.jpg' \/><\/center> Ph\u00e2n s\u1ed1 n\u00e0o d\u01b0\u1edbi \u0111\u00e2y vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n ","select":["A. $\\dfrac{3}{2}$ ","B. $\\dfrac{1}{4}$","C. $\\dfrac{1}{7}$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Nh\u1eadn bi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n ho\u1eb7c v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> $\\bullet$ Vi\u1ebft ph\u00e2n s\u1ed1 d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n v\u1edbi m\u1eabu s\u1ed1 d\u01b0\u01a1ng. <br\/> $\\bullet$ Ph\u00e2n t\u00edch m\u1eabu \u0111\u00f3 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1. <br\/> $\\bullet$ N\u1ebfu m\u1eabu n\u00e0y kh\u00f4ng c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c $2$ v\u00e0 $5$ th\u00ec ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n. <br\/> N\u1ebfu m\u1eabu n\u00e0y c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c $2$ v\u00e0 $5$ th\u00ec ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $\\dfrac{3}{2}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 l\u00e0 $2$ (kh\u00f4ng ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> $\\dfrac{1}{4}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 l\u00e0 $4 = 2^{2}$ (kh\u00f4ng ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> $\\dfrac{1}{7}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 l\u00e0 7 (c\u00f3 ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> V\u1eady ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n l\u00e0 $\\dfrac{1}{7}$ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":3}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:46"}]}