Toán lớp 12 - Đề kiểm tra cuối năm - Toán lớp 12 - Tháng 5 - Số 3
{"save":1,"level":1,"time":"60","total":25,"point":5,"segment":[{"id":"1507","test_id":"320","question":"<p>Trong không gian Oxyz, cho m\u1eb7t ph\u1eb3ng <span class=\"math-tex\">$\\left( P \\right):2x\\,-\\,3y\\,+\\,z\\,\\,-2\\,=\\,0$<\/span><\/p><p>Vect\u01a1 nào d\u01b0\u1edbi \u0111ây là m\u1ed9t vect\u01a1 pháp tuy\u1ebfn c\u1ee7a <span class=\"math-tex\">$\\left( P \\right)$<\/span> ?<br \/><br \/> <\/p>","options":["<span class=\"math-tex\">$\\overrightarrow{{{n}_{1}}}=\\left( -3;1;-2 \\right)$<\/span>","<span class=\"math-tex\">$\\overrightarrow{{{n}_{2}}}=\\left( 2;-3;-2 \\right)$<\/span>","<span class=\"math-tex\">$\\overrightarrow{{{n}_{3}}}=\\left( 2;-3;1 \\right)$<\/span>","<span class=\"math-tex\">$\\overrightarrow{{{n}_{4}}}=\\left( 2;1;-2 \\right)$<\/span>"],"correct":"3","answer":"<p>Ph\u01b0\u01a1ng trình m\u1eb7t ph\u1eb3ng Oxyz có d\u1ea1ng: <span class=\"math-tex\">$ax+by+cz+d=0$<\/span><\/p><p>Véc t\u01a1 pháp tuy\u1ebfn có t\u1ecda \u0111\u1ed9 (a, b, c)<\/p>","type":"choose","user_id":"108","test":"0","date":"2020-04-08 21:33:09"},{"id":"1508","test_id":"320","question":"<p>\u0110\u1ed3 th\u1ecb c\u1ee7a hàm s\u1ed1 nào d\u01b0\u1edbi \u0111ây có d\u1ea1ng nh\u01b0 \u0111\u01b0\u1eddng cong trong hình v\u1ebd bên?<\/p><p><span class=\"svgedit\"><svg height=\"300\" width=\"400\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>\\n<title><\/title>\\n<rect fill=\"#fff\" height=\"302\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\\n<title><\/title>\\n<image height=\"306\" id=\"svg_1\" stroke=\"null\" width=\"391\" x=\"8\" 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Gu9q98Zpn5qZ4HPTT5Y2+fxtanwtanwtanwtanwtanwtanwtanwtanwtanwtanwtanwtanwtSn49+9\/mXpbfm+5TzUAAAAASUVORK5CYII=\" y=\"-3\"><\/image> <\/g> <\/svg><\/span><br \/> <\/p>","options":["<span class=\"math-tex\">$y={{x}^{3}}-3{{x}^{2}}-2$<\/span>","<span class=\"math-tex\">$y={{x}^{4}}-2{{x}^{2}}-2$<\/span>","<span class=\"math-tex\">$y=-{{x}^{3}}+3{{x}^{2}}-2$<\/span>","<span class=\"math-tex\">$y=-{{x}^{4}}+2{{x}^{2}}-2$<\/span>"],"correct":"2","answer":"<p>Hàm s\u1ed1 có 3 c\u1ef1c tr\u1ecb nên là \u0111\u1ed3 th\u1ecb c\u1ee7a hàm s\u1ed1 b\u1eadc 4<\/p><p>Kho\u1ea3ng ngoài cùng \u0111\u1ed3 th\u1ecb \u0111i lên nên h\u1ec7 s\u1ed1 a > 0<\/p><p>V\u1eady ch\u1ecdn \u0111áp án 2<\/p>","type":"choose","user_id":"108","test":"0","date":"2020-04-08 21:37:12"}]}
