Toán lớp 10 - Đề kiểm tra 15 phút - Toán lớp 10 - Tháng 10 - Số 2

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"1968","test_id":"350","question":"<p>G\u1ecdi O l&agrave; t&acirc;m c\u1ee7a h&igrave;nh vu&ocirc;ng ABCD. Vector n&agrave;o trong c&aacute;c vector d\u01b0\u1edbi \u0111&acirc;y b\u1eb1ng&nbsp;<span class=\"math-tex\">$\\overrightarrow{CA}$<\/span>&nbsp;?<\/p>","options":["A.&nbsp;<span class=\"math-tex\">$\\overrightarrow{BC} + \\overrightarrow{AB}$<\/span>","B.<span class=\"math-tex\">$\\overrightarrow{DC} - \\overrightarrow{CB}$<\/span>","C.&nbsp;<span class=\"math-tex\">$\\overrightarrow{BA} + \\overrightarrow{DA}$<\/span>","D.&nbsp;<span class=\"math-tex\">$-\\overrightarrow{OA} + \\overrightarrow{OC}$<\/span>"],"correct":"3","answer":"","type":"choose","user_id":"107","test":"0","date":"2020-04-27 21:36:06"},{"id":"1969","test_id":"350","question":"<p>Trong m\u1eb7t ph\u1eb3ng Oxy cho A(5;2), B(10;8). T\u1ecda \u0111\u1ed9 c\u1ee7a&nbsp;<span class=\"math-tex\">$\\overrightarrow{AB}$<\/span>&nbsp;l&agrave;?<\/p>","options":["A. (5;6)","B. (15;10)","C. (50;16)&nbsp;","D. (-5;-6)"],"correct":"1","answer":"","type":"choose","user_id":"107","test":"0","date":"2020-04-27 21:47:14"}]}