{"common":{"save":0,"post_id":"967","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"751","post_id":"967","mon_id":"0","chapter_id":"0","question":"N\u1ed1i t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u1edf c\u1ed9t b\u00ean tr\u00e1i v\u1edbi c\u1ed9t b\u00ean ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c c\u00e2u ho\u00e0n ch\u1ec9nh","options":{"time":24,"part":[{"time":3,"title":"N\u1ed1i t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u1edf c\u1ed9t b\u00ean tr\u00e1i v\u1edbi c\u1ed9t b\u00ean ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c c\u00e2u ho\u00e0n ch\u1ec9nh","title_trans":"Tr\u00ean m\u1eb7t ph\u1eb3ng t\u1ecda \u0111\u1ed9 $Oxy$, h\u00e3y t\u00ecm t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m: ","audio":"","temp":"matching","correct":[["2","4","1","3"]],"list":[{"point":10,"image":"","left":["C\u00e1c \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u1eb1ng $-1$ ","C\u00e1c \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng $-1$","C\u00e1c \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng ho\u00e0nh \u0111\u1ed9","C\u00e1c \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng s\u1ed1 \u0111\u1ed1i c\u1ee7a ho\u00e0nh \u0111\u1ed9"],"right":["n\u1eb1m tr\u00ean tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c ph\u1ea7n t\u01b0 th\u1ee9 (I) v\u00e0 (III)","n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng song song v\u1edbi tr\u1ee5c tung, c\u1eaft tr\u1ee5c ho\u00e0nh t\u1ea1i \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u1eb1ng $-1$","n\u1eb1m tr\u00ean tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c ph\u1ea7n t\u01b0 th\u1ee9 (II) v\u00e0 (IV)","n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c tung, c\u1eaft tr\u1ee5c tung t\u1ea1i \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng $-1$"],"top":100,"explain":"C\u00e1c \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u1eb1ng $-1$ n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng song song v\u1edbi tr\u1ee5c tung, c\u1eaft tr\u1ee5c ho\u00e0nh t\u1ea1i \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u1eb1ng $-1$ <br\/> C\u00e1c \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng $-1$ n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c tung, c\u1eaft tr\u1ee5c tung t\u1ea1i \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng $-1$ <br\/> C\u00e1c \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng ho\u00e0nh \u0111\u1ed9 n\u1eb1m tr\u00ean tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c ph\u1ea7n t\u01b0 th\u1ee9 (I) v\u00e0 (III). <br\/> C\u00e1c \u0111i\u1ec3m c\u00f3 tung \u0111\u1ed9 b\u1eb1ng s\u1ed1 \u0111\u1ed1i c\u1ee7a ho\u00e0nh \u0111\u1ed9 n\u1eb1m tr\u00ean tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c ph\u1ea7n t\u01b0 th\u1ee9 (II) v\u00e0 (IV). "}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:51"},{"id":"752","post_id":"967","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":14,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["1"],["-2"],["-1"],["2"],["3"],["4"],["-3"],["-4"]]],"list":[{"point":10,"width":50,"type_input":"","ques":" \u0110i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng \u1edf b\u1ea3ng sau c\u00e1c t\u1ecda \u0111\u1ed9 c\u1ee7a c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng \u1ee9ng. <br\/> <table><tr><th>\u0110i\u1ec3m<\/th><th>\u0110i\u1ec3m \u0111\u1ed1i x\u1ee9ng qua tr\u1ee5c Ox<\/th><th>\u0110i\u1ec3m \u0111\u1ed1i x\u1ee9ng qua tr\u1ee5c Oy<\/th><\/tr><tr><td>A(1; 2)<\/td><td>(_input_; _input_)<\/td><td>(_input_; _input_)<\/td><\/tr><tr><td>B(3; -4)<\/td><td>(_input_; _input_)<\/td><td>(_input_;_input_)<\/td><\/tr><\/table>","explain":" - Hai \u0111i\u1ec3m \u0111\u1ed1i x\u1ee9ng qua tr\u1ee5c Ox c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u1eb1ng nhau, tung \u0111\u1ed9 \u0111\u1ed1i nhau. <br\/> - \u0110i\u1ec3m \u0111\u1ed1i x\u1ee9ng qua tr\u1ee5c Oy c\u00f3 tung \u0111\u1ed9 b\u1eb1ng nhau, ho\u00e0nh \u0111\u1ed9 \u0111\u1ed1i nhau. <br\/> Suy ra k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c cho d\u01b0\u1edbi b\u1ea3ng sau: <br\/> <table><tr><th>\u0110i\u1ec3m<\/th><th>\u0110i\u1ec3m \u0111\u1ed1i x\u1ee9ng qua tr\u1ee5c Ox<\/th><th>\u0110i\u1ec3m \u0111\u1ed1i x\u1ee9ng qua tr\u1ee5c Oy<\/th><\/tr><tr><td>$A(1; 2)$<\/td><td>$(1; -2)$<\/td><td>$(-1; 2)$<\/td><\/tr><tr><td>$B(3; -4)$<\/td><td>$(3; 4)$<\/td><td>$(-3; -4)$<\/td><\/tr><\/table> "}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:51"},{"id":"753","post_id":"967","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":10,"ques":" Cho tam gi\u00e1c $ABC$ v\u1edbi $A(1; 1), B(4; 3)$ v\u00e0 $C(3; 4).$ Tam gi\u00e1c $ABC$ l\u00e0 tam gi\u00e1c g\u00ec? ","select":["A. Tam gi\u00e1c vu\u00f4ng ","B. Tam gi\u00e1c \u0111\u1ec1u ","C. Tam gi\u00e1c c\u00e2n ","D. Tam gi\u00e1c vu\u00f4ng c\u00e2n "],"hint":"V\u1ebd h\u00ecnh r\u1ed3i t\u00ecm \u0111\u00e1p \u00e1n. ","explain":"<center><img src='img\/D7B16-51.png' \/><\/center> Ta c\u00f3: $AC^{2} = 2^{2} + 3^{2} = 13 \\\\ AB^{2} = 3^{2} + 2^{2} = 13 \\\\ \\Rightarrow AC = AB $ <br\/> $BC^{2} = 1^{2} + 1^{2} = 2 \\\\ \\Rightarrow BC \\neq AC $ <br\/> V\u1eady tam gi\u00e1c $ABC$ l\u00e0 tam gi\u00e1c c\u00e2n t\u1ea1i A. <br\/> <br\/><span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span> ","column":2}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:51"}]}