{"common":{"save":0,"post_id":"1010","level":2,"total":20,"point":5,"point_extra":0},"segment":[{"id":"371","post_id":"1010","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":[[["1"]]],"list":[{"point":5,"width":50,"type_input":"","ques":" <center><img src='img\/2.jpg' \/><\/center> T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c $A = 0,(37) + 0,(62) = $_input_ ","hint":"\u0110\u01b0a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n v\u1ec1 ph\u00e2n s\u1ed1 r\u1ed3i th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh. ","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> \u0110\u1ed5i s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n \u0111\u01a1n th\u00e0nh ph\u00e2n s\u1ed1 <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> S\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n \u0111\u01a1n c\u00f3 <i> chu k\u00ec <\/i> ngay sau d\u1ea5u ph\u1ea9y. <br\/> <u> C\u00e1ch chuy\u1ec3n<\/u>: L\u1ea5y ph\u1ea7n nguy\u00ean c\u1ee7a n\u00f3 + ph\u00e2n s\u1ed1 [ c\u00f3 <b> t\u1eed s\u1ed1 <\/b> l\u00e0 s\u1ed1 chu k\u00ec; <b> m\u1eabu s\u1ed1 <\/b> l\u00e0 s\u1ed1 g\u1ed3m c\u00e1c ch\u1eef s\u1ed1 9 (s\u1ed1 c\u00e1c ch\u1eef s\u1ed1 9 b\u1eb1ng s\u1ed1 c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a chu k\u00ec)]. <br\/> * M\u1ed9t c\u00e1ch t\u1ed5ng qu\u00e1t: $ \\overline{0,(a_{1}a_{2}...a_{n})} = \\dfrac{\\overline{a_{1}a_{2}...a_{n}}}{\\underbrace{999...9}_{n}} $ <\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $A = 0,(37) + 0,(62) \\\\ = \\dfrac{37}{99} + \\dfrac{62}{99} \\\\ = \\dfrac{99}{99} = 1 $ <br\/> <br\/> <span class='basic_pink'> K\u1ebft qu\u1ea3 l\u00e0 1. <\/span><\/span>"}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:46"},{"id":"372","post_id":"1010","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":[[4]],"list":[{"point":5,"ques":" <center><img src='img\/4.jpg' \/><\/center>T\u00ecm $x $ bi\u1ebft: <br\/> $x : (-2,14) = -3,12 : 1,2 $ ","select":["A. x = 5,546 ","B. x = 0,82 ","C. x = 5,456 ","D. x = 5,564 "],"explain":" Ta c\u00f3: $x : (-2,14) = -3,12 : 1,2 \\\\ \\Rightarrow x = \\dfrac{-2,14.(-3,12)}{1,2} \\\\ = 5,564 $ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","column":2}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:46"},{"id":"373","post_id":"1010","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":[[4]],"list":[{"point":5,"ques":" <center><img src='img\/4.jpg' \/><\/center> S\u1ed1 c\u00e1c ch\u1eef s\u1ed1 trong chu k\u00ec bi\u1ec3u di\u1ec5n s\u1ed1 $\\dfrac{12}{39}$ l\u00e0: ","select":["A. 3 ","B. 4","C. 5","D. 6"],"hint":" $\\dfrac{12}{39} = 0,307692307692... $ ","explain":" Ta c\u00f3: $\\dfrac{12}{39} = 0,307692307692... = 0,(307692)$ <br\/> Chu k\u00ec l\u00e0 : 307692 <br\/> Suy ra s\u1ed1 c\u00e1c ch\u1eef s\u1ed1 trong chu k\u00ec bi\u1ec3u di\u1ec5n s\u1ed1 $\\dfrac{12}{39}$ l\u00e0 6. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","column":4}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:46"}]}