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1 . 已知方程
,下面四个命题是真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608e3b6e18246d45521a240b5bfc5009.png)
A.当![]() |
B.当![]() ![]() |
C.当![]() |
D.当![]() ![]() |
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2 . 正方体
的棱长为1,
,
,
分别为
,
,
的中点.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
A.直线![]() ![]() | B.直线![]() ![]() |
C.平面![]() ![]() | D.点![]() ![]() ![]() |
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2024-06-14更新
|
695次组卷
|
2卷引用:河南省信阳市信阳高级中学贤岭校区2023-2024学年高一下学期6月月考数学试题
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3 . 定义无穷有界级数
,且零项级数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e98736a9e246a381956a44f286b108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489340c9a2d70c00bae13b7018cad448.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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4 . 设
为正整数,已知函数
,
,
. 当
时,记
,其中
. 则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19024088b481805fd372b7b2ffdd8e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95372397621e3a2fc70a6e198e29f44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02511beb97ace697703ada6473ed5d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd600b451b2b7f1680cbbcf36a49703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be308b9f7b2b213abcbcea79f0d42f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9464ddd75dd13f2019e6a868301ff629.png)
A.![]() ![]() |
B.![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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解题方法
5 . 设
是两条不同的直线,
是两个不同的平面,下列命题中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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6 . 函数
.若存在
,使得
为奇函数,则实数
的值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cf6707c0f1c74f49465b0678ccea45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d32d1a5a0732c7e4af737555e44ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61593bf4a3ddaf2fb75e61e1e0ad47ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-07更新
|
282次组卷
|
2卷引用:河南省信阳市高级中学2023-2024学年高三下学期三模数学试题(B)
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7 . 某次数学考试满分150分,记
分别表示甲、乙两班学生在这次考试中的成绩,且
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105de7a92aa438f86f521e817e41a4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054c17c361a0f36f3260a6bf2b93504d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa32eeb427970cd7698b618b41982fe.png)
A.甲班的平均分低于乙班的平均分 |
B.甲班的极差大于乙班的极差 |
C.成绩在![]() |
D.成绩在![]() |
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2024-06-07更新
|
550次组卷
|
2卷引用:河南省信阳市高级中学2023-2024学年高三下学期三模数学试题(B)
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解题方法
8 . 已知双曲线
的左、右焦点分别为
,直线
与
相交于点
,与
的一条渐近线相交于点
的离心率为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f9772b3a117674e43222976a5dc816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cdc8363dae2933e2dd65cd3abf14a5.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a568d700215b8fad6c18b00a62981d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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解题方法
9 . 已知
是定义在
上的函数,且满足:①
;②
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a7a12a723fefe508a5d709cf0b29f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f90979dd0ea1ed8f21341806e476c91.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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10 . 一组样本数据
的平均数为
,方差为
,极差为
,与之相关的一组数据
,
,
,
,
,
的平均数为
,方差为
,极差为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4430d542ab6e63baed2e527f538b47b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85481cd7e94130ef3aa05b4a39e79cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671f43c79d612c93a6d160335e86e177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7fae84b3aa75229abfb82cbd50e631d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef088a38723a7df7f187d5d5265f48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49e77d5fca27dc3cbdd9669d68f8930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da72908ea94132f693361d8f12fe023c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99109390a6051bf14ec2b1f0fe95ad2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d0d22c66cb3de325a2171aa801f28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3962a061ca2784e17223fdc6bc696ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7c7dc0f932c8cfe4fdd2ab938451bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9b4a83b9aebebf29de0c4406ebf894.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
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