{"common":{"save":0,"post_id":"807","level":1,"total":20,"point":5,"point_extra":0},"segment":[{"id":"1651","post_id":"807","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":[[2]],"list":[{"point":5,"ques":"Mu\u1ed1n nh\u00e2n 2 ph\u00e2n s\u1ed1 ta l\u00e0m nh\u01b0 sau:","select":["A. Ta nh\u00e2n t\u1eed s\u1ed1 v\u1edbi t\u1eed s\u1ed1 v\u00e0 gi\u1eef nguy\u00ean m\u1eabu s\u1ed1 ","B. Ta nh\u00e2n t\u1eed s\u1ed1 v\u1edbi t\u1eed s\u1ed1 v\u00e0 nh\u00e2n m\u1eabu s\u1ed1 v\u1edbi m\u1eabu s\u1ed1 "],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Theo quy t\u1eafc nh\u00e2n hai ph\u00e2n s\u1ed1: Mu\u1ed1n nh\u00e2n hai ph\u00e2n s\u1ed1 ta nh\u00e2n t\u1eed s\u1ed1 v\u1edbi t\u1eed s\u1ed1 v\u00e0 nh\u00e2n m\u1eabu s\u1ed1 v\u1edbi m\u1eabu s\u1ed1 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":1}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:54"},{"id":"1652","post_id":"807","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":[[2]],"list":[{"point":5,"ques":"H\u00e3y ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang th\u1ec3 hi\u1ec7n t\u00ednh ch\u1ea5t k\u1ebft h\u1ee3p c\u1ee7a ph\u00e9p nh\u00e2n ph\u00e2n s\u1ed1: <br\/> $\\left( \\dfrac{a}{b} . \\dfrac{c}{d} \\right) . \\dfrac{m}{n}$ = ? ","select":["A. $\\dfrac{a . m}{b . n} . \\dfrac{c . m}{d . n} $ ","B. $ \\dfrac{a}{b} . \\left( \\dfrac{c}{d} . \\dfrac{m}{n} \\right) $ ","C. $ \\dfrac{a . c}{b . d} . \\dfrac{m}{n} $ "],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Theo t\u00ednh ch\u1ea5t k\u1ebft h\u1ee3p c\u1ee7a ph\u00e9p nh\u00e2n ta c\u00f3: <br\/> $\\left( \\dfrac{a}{b} . \\dfrac{c}{d} \\right) . \\dfrac{m}{n} = \\dfrac{a}{b} . \\left( \\dfrac{c}{d} . \\dfrac{m}{n} \\right) $ <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":3}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:54"},{"id":"1653","post_id":"807","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":[[2]],"list":[{"point":5,"ques":"Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c $\\dfrac{-4}{5} . \\dfrac{3}{2} . \\dfrac{-10}{11}$ l\u00e0: ","select":["A. $\\dfrac{-12}{11} $ ","B. $ \\dfrac{12}{11}$ ","C. $ \\dfrac{-30}{55} $ ","D. $ \\dfrac{60}{22}$"],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Mu\u1ed1n nh\u00e2n hai ph\u00e2n s\u1ed1 ta nh\u00e2n t\u1eed s\u1ed1 v\u1edbi t\u1eed s\u1ed1 v\u00e0 nh\u00e2n m\u1eabu s\u1ed1 v\u1edbi m\u1eabu s\u1ed1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\dfrac{-4}{5} . \\dfrac{3}{2} . \\dfrac{-10}{11} = \\dfrac{-4 . 3 . (-10)}{5 . 2 . 11} = \\dfrac{120}{110} = \\dfrac{12}{11}$ <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. $\\dfrac{12}{11}$ <\/span> <br\/> <span class='basic_green'> <i> Nh\u1eadn x\u00e9t: N\u00ean r\u00fat g\u1ecdn c\u00e1c ph\u00e2n s\u1ed1 \u0111\u1ebfn t\u1ed1i gi\u1ea3n tr\u01b0\u1edbc v\u00e0 sau khi th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh <\/i><\/span> ","column":4}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:54"}]}