四川省德阳市第五中学2023-2024学年高三上学期12月月考 文数
德阳五中高2021级高三上期12月月考文科数学试题(总分150分答题时间120分钟)注意事项:1.答题前填写好自己的姓名、班级、考号等信息2.请将答案正确填写在答题卡上第I卷(选择题)一、选择题(本大题共12个小题.每小题5分,共60分,在每小题给出的四个选项中,只有一项是符合要求,请将答案填涂在答题卡上)1.已知集合A={x|x−2x+1≥0},B={x|−20)的左焦点F1,若点P位于x轴上方且在椭圆C上,直线PF1垂直于直线y=−√33x于点Q,|PF1|=32|F1Q|,则椭圆C的离心率为()A.45B.23C.√32D.3512.已知,分别是方程和的根,若,实数a,,则的最小值为( ...
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