{"common":{"save":0,"post_id":"1016","level":1,"total":20,"point":5,"point_extra":0},"segment":[{"id":"1481","post_id":"1016","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":" Khi ch\u1ee9ng minh m\u1ed9t \u0111\u1ecbnh l\u00fd, ng\u01b0\u1eddi ta c\u1ea7n: ","select":["A. Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd \u0111\u00f3 \u0111\u00fang trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 c\u1ee7a gi\u1ea3 thi\u1ebft. ","B. Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd \u0111\u00f3 \u0111\u00fang trong hai tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 c\u1ee7a gi\u1ea3 thi\u1ebft.","C. Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd \u0111\u00f3 \u0111\u00fang trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p c\u00f3 th\u1ec3 x\u1ea3y ra c\u1ee7a gi\u1ea3 thi\u1ebft.","D. Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd \u0111\u00f3 \u0111\u00fang trong v\u00e0i tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 c\u1ee7a gi\u1ea3 thi\u1ebft. "],"hint":"","explain":" Khi ch\u1ee9ng minh m\u1ed9t \u0111\u1ecbnh l\u00fd, ng\u01b0\u1eddi ta c\u1ea7n: <br\/> Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd \u0111\u00f3 \u0111\u00fang trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p c\u00f3 th\u1ec3 x\u1ea3y ra c\u1ee7a gi\u1ea3 thi\u1ebft. <br\/> <br\/> <span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span> ","column":1}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:00"},{"id":"1482","post_id":"1016","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":" Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd l\u00e0: ","select":["A. D\u00f9ng l\u1eadp lu\u1eadn \u0111\u1ec3 t\u1eeb gi\u1ea3 thi\u1ebft suy ra k\u1ebft lu\u1eadn. ","B. D\u00f9ng l\u1eadp lu\u1eadn \u0111\u1ec3 t\u1eeb k\u1ebft lu\u1eadn suy ra gi\u1ea3 thi\u1ebft. ","C. D\u00f9ng h\u00ecnh v\u1ebd \u0111\u1ec3 suy ra k\u1ebft lu\u1eadn. ","D. D\u00f9ng \u0111o \u0111\u1ea1c tr\u1ef1c ti\u1ebfp \u0111\u1ec3 suy ra k\u1ebft lu\u1eadn. "],"hint":"","explain":" Ch\u1ee9ng minh \u0111\u1ecbnh l\u00fd l\u00e0: D\u00f9ng l\u1eadp lu\u1eadn \u0111\u1ec3 t\u1eeb gi\u1ea3 thi\u1ebft suy ra k\u1ebft lu\u1eadn. <br\/> <br\/> <span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span> ","column":1}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:00"},{"id":"1483","post_id":"1016","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":" Trong \u0111\u1ecbnh l\u00fd ''Hai g\u00f3c \u0111\u1ed1i \u0111\u1ec9nh th\u00ec b\u1eb1ng nhau''. <br\/> Ta c\u00f3 gi\u1ea3 thi\u1ebft c\u1ee7a \u0111\u1ecbnh l\u00fd l\u00e0: <center><img src='img\/H7C16-20.png' \/><\/center> ","select":["A. a c\u1eaft b t\u1ea1i O ","B. $\\widehat{O_{1}} $ v\u00e0 $\\widehat{O_{2}} $ l\u00e0 hai g\u00f3c \u0111\u1ed1i \u0111\u1ec9nh. ","C. $\\widehat{O_{1}} $ v\u00e0 $\\widehat{O_{2}} $ l\u00e0 hai g\u00f3c b\u1eb1ng nhau. ","D. $\\widehat{O_{1}} $ v\u00e0 $\\widehat{O_{2}} $ l\u00e0 hai g\u00f3c nh\u1ecdn "],"hint":"","explain":" Gi\u1ea3 thi\u1ebft c\u1ee7a \u0111\u1ecbnh l\u00fd l\u00e0: $\\widehat{O_{1}} $ v\u00e0 $\\widehat{O_{2}} $ l\u00e0 hai g\u00f3c \u0111\u1ed1i \u0111\u1ec9nh. <br\/> K\u1ebft lu\u1eadn l\u00e0: $ \\widehat{O_{1}} = \\widehat{O_{2}}$ <br\/> <br\/> <span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:00"}]}