名校
解题方法
1 . 如图,在四棱锥
中,平面
平面
分别为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/066fdfff-63b5-45b0-9d14-0ee7691d5c9b.png?resizew=167)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
平面
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4411db557f044e1eb441826c7a953b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3523c26938e840338d37a21adb98c76f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/066fdfff-63b5-45b0-9d14-0ee7691d5c9b.png?resizew=167)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a6a9cd266a70fc0b5bb5f0012b1855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
2024-01-21更新
|
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|
2卷引用:河南省濮阳市部分学校2023-2024学年2023-2024学年高二上学期12月月考数学试题
名校
解题方法
2 . 过椭圆
的右焦点
且斜率为1的直线
交
于
两点.
(1)求
;
(2)若
为
上的动点,设
(
为坐标原点),求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/7789a500686c7a73770404ead6af0590.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f51014166ff1711f5d33e585efe6a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb0f3946bc7a32df269dc878e22196b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c918ca5d4e6d46ed130f85e5fa608d.png)
您最近一年使用:0次
名校
3 . 已知双曲线
的左、右焦点分别为
,一条渐近线为
,过点
作
的垂线,垂足为
,且
.
(1)求双曲线
的方程;
(2)若线段
与
交于点
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c037b199f33cbed1efcffdd2376d8c10.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0d40936c3e7d1e144576896e09b107.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1eb15d354e4ef64e6f4297edc8acd5.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/f4ef569668e797b1e94257fd5f4384dd.png)
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解题方法
4 . 已知点
.
(1)求点C到直线
的距离;
(2)若直线
与直线
相互垂直,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a679be9d0599885029cb0865100c72.png)
(1)求点C到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6606c57977d1c1e80e4fe530891998dd.png)
您最近一年使用:0次
2024-01-11更新
|
172次组卷
|
2卷引用:河南省濮阳市2023-2024学年高二上学期12月联考数学试题
名校
解题方法
5 . 设圆
的直径为
,若在圆
上存在点
,使得
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f696f360654d17c0b26f89bfbd76ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9a240fc71a18d23835bc9a11610be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b768ea6a05cbf45b28fc46c501ba532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-05更新
|
553次组卷
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2卷引用:河南省濮阳市部分学校2023-2024学年2023-2024学年高二上学期12月月考数学试题
6 . 如图,在圆锥
中,点A,B在底面圆周上,点C,D分别是母线
的中点,
,记
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae15e429b1f97e484c2669954d2d66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bea1d106494bdd222c43c653b42ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398c5d7b6ff455e94a78034670a3eeca.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/1b65fe4e-2673-4a07-a169-bb437c3193ad.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-03更新
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228次组卷
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2卷引用:河南省濮阳市2023-2024学年高二上学期12月联考数学试题
解题方法
7 . 已知椭圆
与椭圆
有相同的离心率,且
为
的上顶点.
(1)求
的标准方程;
(2)设斜率存在且经过原点的直线l交
于
两点,直线
与
异于点A的另一交点分别为点M,N,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540bff14a4d81fb9e32114522c57ba9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设斜率存在且经过原点的直线l交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67660ecd88652c3d96dce1ee5da31524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e712b3a3a835b6d32e51fde2cae0b178.png)
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2024-01-03更新
|
134次组卷
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2卷引用:河南省濮阳市2023-2024学年高二上学期12月联考数学试题
8 . 如图,已知斜四棱柱
,底面
为等腰梯形,E为线段
的中点,四边形
为菱形,点
到底面
的距离为
,且
为线段
的中点.
(1)证明:
平面
;
(2)求二面角
的平面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bfad3f7e65188bcf7f62ea5acdbf4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bd6d4abeb59a060a34b354548e7451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/81358819-b4d4-416e-8925-ce83b49457c6.png?resizew=246)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e53b212640dadf751ef7f65a78a209.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a8e0c5bcf2d86726cd9f561b8ff5fe.png)
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2卷引用:河南省濮阳市2023-2024学年高二上学期12月联考数学试题
9 . 已知数列
满足
,则
的值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64071094ab35c63745b1b9d8bdd2cbd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7289c4b138910e8be1dbacb9e96be9.png)
A.1 | B.1314 | C.![]() | D.![]() |
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2024-01-02更新
|
243次组卷
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2卷引用:河南省濮阳市2023-2024学年高二上学期12月联考数学试题
10 . 若
,则
在
上的投影向量的模为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17a08742b929dc06c3ac82a3c730413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
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2024-01-01更新
|
294次组卷
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2卷引用:河南省濮阳市2023-2024学年高二上学期12月联考数学试题