解题方法
1 . 如图,把正方形纸片
沿对角线
进行翻折,点
,
满足
,
,
是原正方形
的中心,当
,直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/c1d750e26e69fa8c6ddd99d6073417ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448aa2e97719a3969ffd3c8412c0ae19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefe5ff6505aa83e2a4d4a664ea4e3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/aedf58d7-3055-43dd-b442-ca6fb7a4042c.png?resizew=160)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
2 . 如图,在棱长为2的正方体
中,P为线段
上的动点,则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
A.直线![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.当![]() ![]() |
D.若![]() ![]() ![]() |
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3 . 在正方体
中,过
作一垂直于
的平面交平面
于直线
,动点
在直线
上,则直线
与
所成角余弦值的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
A.![]() | B.![]() | C.![]() | D.1 |
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解题方法
4 . 在四棱锥
中,棱长为2的侧棱
垂直底面边长为2的正方形
,
为棱
的中点,过直线
的平面
分别与侧棱
、
相交于点
、
,当
时,截面
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.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/4b30155e0e3cf7c5146d3311e5b8da93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3523cdc82148ce56a0906fbb57163a8.png)
A.2 | B.3 | C.![]() | D.![]() |
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名校
解题方法
5 . 如图,在四棱锥
中,底面
为正方形,
底面
,
,E为
上一点,且
,则异面直线
与
所成角的余弦值为( )
![](https://img.xkw.com/dksih/QBM/2023/12/22/3394765020700672/3394971399905280/STEM/759614ce3453438284002d0bad4ddaeb.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb12d96e3dea2951b5f76d5b88bccfb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7425d02b371e3bf7a79fc416fc04fe90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/2023/12/22/3394765020700672/3394971399905280/STEM/759614ce3453438284002d0bad4ddaeb.png?resizew=160)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-22更新
|
323次组卷
|
4卷引用:浙江省武义第一中学2023-2024学年高二上学期1月检测数学试题
浙江省武义第一中学2023-2024学年高二上学期1月检测数学试题山东省枣庄市薛城实验中学等校2023-2024学年高二上学期12月大联考数学试题(已下线)专题04 异面直线所成的角(期末选择题4)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)山东省临沂市多校2023-2024学年高二上学期12月大联考数学试题
解题方法
6 . 正方体
中,二面角
的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a37f61e228d77116e392ed227f102b8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
7 . 在正方体
中,
是棱
上一点,
是棱
上一点,
,则异面直线
与
所成角的余弦值为( )
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b432067f8dd0cd2ba829a884dc5edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554b3b4c5ce7aca81becc07ed4903736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6214fb4c3a4d7d404ed99db1b27f6242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-15更新
|
90次组卷
|
8卷引用:浙江省杭州市富阳区实验中学2023-2024学年高二上学期9月摸底考试数学试题
浙江省杭州市富阳区实验中学2023-2024学年高二上学期9月摸底考试数学试题湖南省天壹名校联盟2022-2023学年高二下学期入学摸底数学试题江西省抚州市黎川县第二中学2024届高三上学期开学考试数学试题(已下线)高二上学期第一次月考十八大题型归纳(拔尖篇)(2)福建省福州市山海联盟教学协作校2023-2024学年高二上学期期中联考数学试题(已下线)高二上期中真题精选(压轴60题30个考点专练)【考题猜想】-2023-2024学年高二数学上学期期中考点大串讲(人教A版2019选择性必修第一册)辽宁省沈阳市新民市第一高级中学2023-2024学年高二上学期10月月考数学试题(已下线)通关练03 用空间向量解决距离、夹角问题10考点精练(58题) - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)
名校
解题方法
8 . 教材44页第17题:在空间直角坐标系中,已知向量
,点
,点
.(1)若直线l经过点
,且以
为方向向量,P是直线l上的任意一点,求证:
;(2)若平面
经过点
,且以
为法向量,P是平面
内的任意一点,求证:
.利用教材给出的材料,解决下面的问题:已知平面
的方程为
,直线
是平面
与
的交线,则直线
与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448381ad5527aa15c9e69a049fc8c09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832b5312310a88bef6596496df8daa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b82ad92798b264062c062f4a9a1a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4733a43364bdf78f59757c8f8c3fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f0582d9908f92f14cb02a6ccaf0eae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4733a43364bdf78f59757c8f8c3fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b523a8c1993478f6599680dc3b3dc45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa144c27f1deb376ce3ef53c1a86a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b818e1793be8d9213e903e5224987a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2888abfda58ff7563b34102d4d736d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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2023-11-14更新
|
428次组卷
|
2卷引用:浙江省绍兴市第一中学2023-2024学年高二上学期期中数学试题
解题方法
9 . 如图,将正方形
纸片沿对角线
翻折,若E,F分别为
的中点,O为原正方形
的中心,使得折纸后的二面角
的大小为
,则此时
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46c696ff5f123a482bae81cf9a1b570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1854ba6cc92481d7a616bd2788a47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d529116469135597c7bf6455625d39.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/14/3ae7f266-ed53-440a-a0a2-bd1929fa44eb.png?resizew=143)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 平面
的一个法向量为
,一条直线
的方向向量
,则这条直线
与平面
所成的角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a33a031d52070841e7a0c64ed014e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8f0f4dc615255c261994eaed63195a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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