Toán lớp 10 - Đề kiểm tra 15 phút - Toán lớp 10 - Tháng 10 - Số 1

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"1427","test_id":"302","question":"<p>Cho parabol (P):&nbsp;<span class=\"math-tex\">$y=ax^2+bx+2\\n$<\/span>, bi\u1ebft r\u1eb1ng parabol \u0111&oacute; \u0111i qua 2 \u0111i\u1ec3m A(1;5) v&agrave; B(-2;8). Parabol \u0111&oacute; c&oacute; ph\u01b0\u01a1ng tr&igrave;nh l&agrave;:&nbsp;<\/p>","options":["A.&nbsp;<span class=\"math-tex\">$y=2x^2+x+2\n$<\/span>","B.&nbsp;<span class=\"math-tex\">$y=-x^2+2x+2$<\/span>","C.&nbsp;<span class=\"math-tex\">$y=x^2-4x+2\n$<\/span>","D.&nbsp;<span class=\"math-tex\">$y=2x^2+x+1$<\/span>"],"correct":"1","answer":"","type":"choose","user_id":"107","test":"0","date":"2020-04-05 21:15:49"},{"id":"1428","test_id":"302","question":"<p>Cho m\u1ec7nh \u0111\u1ec1 &quot;<span class=\"math-tex\">$\\exists x \\in \\mathbb{R}, x^2=3$<\/span>&quot; kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng<\/p>","options":["A. Ch\u1ec9 c&oacute; m\u1ed9t s\u1ed1 th\u1ef1c c&oacute; b&igrave;nh ph\u01b0\u01a1ng b\u1eb1ng 3","B. C&oacute; &iacute;t nh\u1ea5t m\u1ed9t s\u1ed1 th\u1ef1c m&agrave; b&igrave;nh ph\u01b0\u01a1ng c\u1ee7a n&oacute; b\u1eb1ng 3","C.&nbsp; N\u1ebfu&nbsp;<span class=\"math-tex\">$x$<\/span>&nbsp;l&agrave; s\u1ed1 th\u1ef1c th&igrave;&nbsp;<span class=\"math-tex\">$x^2=3$<\/span>","D. B&igrave;nh ph\u01b0\u01a1ng c\u1ee7a m\u1ed7i s\u1ed1 th\u1ef1c b\u1eb1ng 3"],"correct":"2","answer":"","type":"choose","user_id":"107","test":"0","date":"2020-04-05 21:23:13"}]}