名校
解题方法
1 . 长方体
中,
为
的中点,则直线
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/1f61a5528a85a50b3e2ae0552f6b0b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,在直三棱柱
中,
,则直线
与直线
夹角的余弦值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1c6e819a001d43e32d020cbf513cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/b08416b3-f55d-4d58-ad57-2469fd6eb989.png?resizew=175)
您最近一年使用:0次
2023-10-13更新
|
449次组卷
|
3卷引用:重庆市巴蜀中学校2023-2024学年高二上学期10月月考数学试题
2021高三·全国·专题练习
名校
解题方法
3 . 如图,菱形
中,
,
与
相交于点
,
平面
,
,
,
.若直线
与平面
所成的角为45°,则
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f555fb7ea6e77a6e0fe38586a3992d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce84f6062f12bf6ef42d7b733cd2248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/5/89e6404c-7e9d-4ef9-8b69-bf7ac6383c1a.png?resizew=276)
您最近一年使用:0次
2023-10-03更新
|
594次组卷
|
8卷引用:重庆市永川北山中学校2022-2023学年高二上学期期末数学试题
重庆市永川北山中学校2022-2023学年高二上学期期末数学试题(已下线)第08讲 拓展二:直线与平面所成角的传统法与向量法(含探索性问题)(6类热点题型讲练)山东省济南市济南中学2023-2024学年高二上学期10月月考数学试题辽宁省部分名校2023-2024学年高二上学期联考数学试题(已下线)专题02 空间向量与空间角、空间距离【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)(已下线)高二上学期期中考前必刷卷02(范围:第一章~第二章,提升卷)-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)(已下线)第37讲 立体几何中的向量方法 (练) — 2022年高考数学一轮复习讲练测(课标全国版)(已下线)3.4.3 求角的大小(九大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
解题方法
4 . 如图,在棱长为
的正方体
中,
为
的中点,
,
分别在棱
,
上,
,
.则
与
所成角的余弦值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038611b6f26e2c1a8cc6aee90f881203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86c5baa19e466196686651467151ad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54dc0ff58e8c7d1035c2dff8572b30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1dd5a3f83a7455eb3630364397accc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/27/de17e2b0-89cf-4a67-beea-8c0ecd0d42d5.png?resizew=169)
您最近一年使用:0次
名校
解题方法
5 . 如图,正方
的棱长为2,若空间中的动点P满足
,若
,则二面角
的平面角的大小为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fefb50fbaa3903a0a2ffdce4b685482d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deeb51c6e7c4b266373eb5883afd5072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/26/97c57d38-0ee4-49c7-8d2a-1e1e59b8cb8a.png?resizew=176)
您最近一年使用:0次
2023-09-25更新
|
233次组卷
|
4卷引用:重庆市杨家坪中学2023-2024学年高二上学期九月测试数学试题
名校
解题方法
6 . 已知抛物线
的焦点为F,准线交x轴于点D,过点F作倾斜角为
(
为锐角)的直线交抛物线于A,B两点,如图,把平面
沿x轴折起,使平面
平面
,则三棱锥
体积为__________ ;若
,则异面直线
,
所成角的余弦值取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d62d30d732c3c6ee3f0dd66d7059356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b635e62c3b1f4a57feac8d22be84ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75432478427b7943ee0202da3796a693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
您最近一年使用:0次
2023-03-13更新
|
844次组卷
|
3卷引用:重庆市2023届高三第七次质量检测数学试题
名校
解题方法
7 . 已知等腰
内接于圆O,点M是下半圆弧上的动点(不含端点,如图所示).现将上半圆面沿AB折起,使所成的二面角
为
.则直线AC与直线OM所成角的正弦值最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9bb88a00291932b8ee857904c104d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/ac9e874f-0889-4840-9b2e-eaeea5e434cc.png?resizew=181)
您最近一年使用:0次
2022-11-11更新
|
956次组卷
|
7卷引用:重庆市第二十九中学2023-2024学年高二上学期10月月考数学试题
重庆市第二十九中学2023-2024学年高二上学期10月月考数学试题(已下线)模块三 专题3 小题满分挑战练(1)(苏教版高二)安徽省桐城中学2023-2024学年高二上学期第一次教学质量检测数学试题四川省成都市第四十九中学校2023-2024学年高二上学期期中数学试题福建省福州格致中学2023届高三上学期期中线上数学适应性训练试题江苏省苏州市2022-2023学年高二上学期期末模拟数学试题(已下线)3.4.3 求角的大小(九大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
名校
解题方法
8 . 已知圆柱
中,点
在圆
上,
,
,点
、
在圆
上,且满足
,则直线
与平面
所成角的正弦值的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e32a859e1616f7a7e4202d58d030794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a345f9b241fb571b7950771ae90007d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c78d1942e81ce9e0a27bf07705c4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cee51552e3c12bc27cf8ab1777bf191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6c71a0da6a878a5b12bf8a8e784645.png)
您最近一年使用:0次
2022-11-02更新
|
212次组卷
|
3卷引用:重庆市璧山来凤中学2023-2024学年高二上学期9月月考数学试题
名校
解题方法
9 . 如图,已知AB,CD分别是圆柱上、下底面圆的直径,且
,若该圆柱的底面圆直径是其母线长的2倍,则异面直线AC与BD所成角的余弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896445012328448/2947472404258816/STEM/7da04485-5b0b-4bf8-95de-d7470fb9a895.png?resizew=157)
您最近一年使用:0次
2022-03-30更新
|
398次组卷
|
3卷引用:重庆市第七中学校2023-2024学年高二上学期第一次月考数学试题
名校
解题方法
10 . 在菱形
中,
,将
沿对角线
折起,若二面角
为直二面角,则二面角
的余弦值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a9896ee8415feccf06721dafc891b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb961bd7db3adb76af2d4cedb611bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1899a59b96d881f7bd508a8df1c3a33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79d3309631a2959d500ebecec40b5d8.png)
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2022-01-15更新
|
305次组卷
|
6卷引用:重庆市江津第二中学校2023-2024学年高二上学期期中数学试题