解题方法
1 . 如图,在四棱锥
中,
平面
,
,
,
,
,点
在
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/10/230ec99d-09e4-4131-bda0-9823a2aad235.png?resizew=166)
(1)证明:
平面
;
(2)当二面角
的余弦值为
时,求点
到直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25eb757d05fbff80d50c3bb8dbcb8657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d669df6c391aa83150df5ae96c39d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/10/230ec99d-09e4-4131-bda0-9823a2aad235.png?resizew=166)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826bf6fa3706921b77ad0eb4fcc206bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)当二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5617a404c5a3356753136e5a6b6d51e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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2 . 已知平行六面体
中,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22889be95eae5a8abefd49889a605f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65122258ecddd2626ab681756619508c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-07更新
|
354次组卷
|
3卷引用:江苏省连云港市东海县2023-2024学年高二下学期期中考试数学试题
江苏省连云港市东海县2023-2024学年高二下学期期中考试数学试题江苏省灌云高级中学2023-2024学年高二下学期期中考试数学试卷(已下线)专题01 空间向量表示及运算--高二期末考点大串讲(苏教版2019选择性必修第二册)
名校
解题方法
3 . 如图所示,已知空间四边形
的每条边和对角线长都等于1,点
,
,
分别是
的中点.
;
(2)求证:
;
(3)求异面直线
和
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/868a68302dfab497e705816c2b1c9708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643493af30a14550f145f5394efed45f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb023313112cd8a6068d013fdcc9a193.png)
(3)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
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4 . 已知
为双曲线C:
的左、右焦点,过
的直线交双曲线C右支于P,Q两点,则下列叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
A.若![]() ![]() ![]() | B.弦![]() ![]() |
C.点P到两渐近线的距离之积为![]() | D.点P与直线![]() |
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解题方法
5 . 已知双曲线E:
的左,右焦点分别为
,离心率为2,点B为
,直线
与圆
相切.
(1)求双曲线E方程;
(2)过
的直线l与双曲线E交于M,N两点,
①若
,求
的面积取值范围:
②若直线l的斜率为k,是否存在双曲线E上一点Q以及x轴上一点P,使四边形PMQN为菱形?若存在,求出
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad29801f799532ee7dda9658c30e373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb7edd919d58c85c4813f43729eb5af.png)
(1)求双曲线E方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096a1ef5efc86957efc9fbf5a24c50a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
②若直线l的斜率为k,是否存在双曲线E上一点Q以及x轴上一点P,使四边形PMQN为菱形?若存在,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b986e3613290b456532843d5ad4c6e67.png)
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6 . 如图,在四棱柱
中,底面
和侧面
均是边长为2的正方形.
.
(2)若
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d56889f2417c8449b7ed31a03550d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66851f7400115aa40cb6020de80f7bc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
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解题方法
7 . 设椭圆C:
的上顶点为A,左、右焦点分别为
,连接
并延长交椭圆C于点P,若
,则该椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b35d50730c973286dc99ed9405f6d4.png)
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解题方法
8 . 如图,由正四棱锥
和正方体
组成的多面体的所有棱长均为
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
A.![]() ![]() |
B.平面![]() ![]() |
C.![]() ![]() ![]() |
D.点![]() ![]() ![]() |
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解题方法
9 . 已知
是空间的一个基底,
是空间的另一个基底,一向量
在基底
下的坐标为
,则向量
在基底
下的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5401d7f4a297c8b097e74bdebaaa8570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1525cfabc81dd4d80e2f6154c3c864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5401d7f4a297c8b097e74bdebaaa8570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0522729d64833c852df601136faba3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1525cfabc81dd4d80e2f6154c3c864.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe509c96cc4217409cd82578a364c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45964da64974b51c9880c54c73211c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.1 | B.2 | C.3 | D.![]() |
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