名校
1 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9a5cb98609b16c490bcf7cf5911cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3989fa15140bd335becc4f155ac148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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解题方法
2 . 设
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e520719ad000e6a0077017dfd4a51902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf9f16560a4344b5f1de3db84df6b42.png)
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解题方法
3 . 已知椭圆
的左、右焦点分别为
,焦距为6,点
,直线
与
交于A,B两点,且
为AB中点,则
的周长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d25e70d37af93796965efc8d342185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bf0cf2f9b056030f17dfba06f62b1f.png)
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4 .
的展开式中
的系数为______ (用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbcdf8a5cee2b8be62b0c155da470886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27aacae8654b13513072b1121366df1.png)
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5 . 已知
是函数
的一条对称轴,
在区间
内恰好存在3个对称中心,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d790141e9aa34ddfbb0781b04467fb48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bddfdf57b89b52ee0141ee2ab16c76d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51f29321e543154f6ab3a961548e55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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6 . 分子是1的分数叫做单位分数,古代埃及人在进行分数运算时,只使用分子是1的分数,因此这种分数也叫做埃及分数.从
这13个分数中,取出3个不同的分数组成空间直角坐标系内的一个点的坐标,则满足这3个分数的和为
的不同对应点的个数是__________ .(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad922bb9804ddaf7e2f54c765cc7f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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7 . 如图,已知正四面体
的棱长为
分别为棱
的中点.若该正四面体有一内接圆锥
,其中
为圆锥的顶点,底面圆心
在线段
上,则该圆锥体积的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18755b4aaf64e1d055018c8510f8f2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46c696ff5f123a482bae81cf9a1b570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5dbfcff5c8b5d4e312a9247b2b8b0a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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解题方法
8 . 设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a8a6cf7bda774ff06c4eb0d1aa34de.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc29bcdb78d7b1400833aea78a7d4f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a8a6cf7bda774ff06c4eb0d1aa34de.png)
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2024-06-08更新
|
629次组卷
|
2卷引用:河北省衡水市武邑中学2023-2024学年高二下学期第二次月考数学试题
名校
9 . 已知向量
,
,
,若
三个向量共面,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b014d00c7730189d08d0af9ac76f465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62db793887f54878fd020cd5d09811d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9acbd3d31d44fd6b76987baa09d9105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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2024-06-05更新
|
135次组卷
|
2卷引用:河北省衡水市郑口中学2024届高三第三次质量检测数学试题
10 . 已知正项等比数列
的前
项和为
,若有
,使得
,则数列
的公比为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6003d3f0334d78bcedd658091018af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f122f90a04a3d0d8fa5b895d9fcd9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
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