名校
1 . 直线
的倾斜角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306c51792bff89731b41a0c5de0c3f45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 若等比数列
的公比
且
,若
成等差数列,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45482d31d1d7448c9f3922b4d2a55331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71acdb04454c77e1e25ad4f336cccfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888c510d831951d8e66f17d9eddc3333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ada5879449edb61d5d08278ec58151d.png)
A.![]() | B.![]() | C.![]() | D.不确定 |
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2023-12-24更新
|
392次组卷
|
2卷引用:河南省焦作市第一中学2022-2023学年高二下学期期中数学试题
名校
解题方法
3 . 已知点
,
,
是直线
上的动点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a865d0cdbd1f950ba14112528db7af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6fe915da51b1be6414ac2b92b3cea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8c3d4b3d327a6343695dabe46af367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae4bf49a95b291e539290d8f08632ca.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
4 . 如图,某颗人工智能卫星的运行轨道近似可看作以地心
为一个焦点且离心率为
的椭圆,地球可看作半径为
的球体,近地点离地面的距离为
,则远地点离地面的距离
为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/7307a3bf-e825-4051-885a-f5efd42b7e94.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/7307a3bf-e825-4051-885a-f5efd42b7e94.png?resizew=157)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-23更新
|
253次组卷
|
2卷引用:河南省太康县第一高级中学等校2023-2024学年高二上学期期中学业质量监测考试数学试题
名校
5 . 在棱长为2的正四面体
中,点
为
所在平面内以
,
为左、右顶点,
为半短轴长的椭圆上的一动点,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
A.4 | B.2 | C.![]() | D.![]() |
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名校
解题方法
6 . 班级物理社团在做光学实验时,发现了一个有趣的现象:从椭圆的一个焦点发出的光线经椭圆形的反射面反射后将汇聚到另一个焦点处.根据椭圆的光学性质解决下面问题:已知椭圆
的方程为
,其左、右焦点分别是
,
,直线
与椭圆
切于点
,且
,过点
且与直线
垂直的直线
与椭圆长轴交于点Q,则
(注;若
的角平分线
交
于点
,则
)( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/d7065890-b3a4-419f-9af3-7f0df4e07cee.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d746befd60b0ddd30ef7206f322a2ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da21a961d258648c661a59e983fed864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b89f4ed179b782891879cceaf44c112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5ca418ff0d36929cd06551f74d58c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/d7065890-b3a4-419f-9af3-7f0df4e07cee.png?resizew=156)
A.1 | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
7 . 下列各式成立的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
8 . 已知
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8a3365e99f926b1dafa901ab232152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc32966e14e977e473cc3b01f621be6.png)
A.![]() | B.![]() | C.![]() | D.6 |
您最近一年使用:0次
名校
9 . 已知抛物线
的准线为
,且
与直线
相切,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dd5f1e610f9a9fd2c693165daf6472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd144e0e96e4236a14523e0729cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
A.2 | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-19更新
|
718次组卷
|
2卷引用:河南省商丘市部分学校2023-2024学年高二上学期期中考试数学试卷
名校
10 . 集合
,则
中元素的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a89ad55e46792574fa79b391f68d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.2 | B.3 | C.4 | D.5 |
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2023-12-18更新
|
155次组卷
|
2卷引用:河南省安阳市第一中学2023-2024学年高一上学期第二次阶段考试数学试题