名校
解题方法
1 . 在棱长为1的正方体
中,
为
的中点,那么直线
与
所成角的余弦值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/cade1e13-8037-409f-a4dc-e2cf48ca848b.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/cade1e13-8037-409f-a4dc-e2cf48ca848b.png?resizew=145)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-05更新
|
831次组卷
|
4卷引用:沪教版(2020) 必修第三册 高效课堂 第十章 10.2直线与直线的位置关系(2)
沪教版(2020) 必修第三册 高效课堂 第十章 10.2直线与直线的位置关系(2)(已下线)专题8.8 空间点、直线、平面之间的位置关系(重难点题型检测)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)(已下线)立体几何专题:线线角与线面角的5种考法天津市英华实验学校2022-2023学年高一下学期第二次统练数学试题
解题方法
2 . 如图,在正方体
中,E、F分别为AB、AD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/6bb65389-bb0d-4231-8e5a-6b0a05f4545e.png?resizew=175)
(1)
与
所成角的大小为______ ;
(2)
与
所成角为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/6bb65389-bb0d-4231-8e5a-6b0a05f4545e.png?resizew=175)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
解题方法
3 . 如图,正方体
的棱长为a,那么:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/ec1a1d09-3724-4e2c-8203-5fc69ef843cb.png?resizew=135)
(1)哪些棱所在直线与直线
成异面直线?________________________ .
(2)直线
与
所成角的大小为________________________ .
(3)直线
与
所成角的大小为________________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/ec1a1d09-3724-4e2c-8203-5fc69ef843cb.png?resizew=135)
(1)哪些棱所在直线与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
您最近一年使用:0次
4 . 在长方体
中,
,求
(1)
与
所成角的度数;
(2)
与
所成角的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c09068b8caa43b061f03224a6fcd300.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
您最近一年使用:0次
5 . 在四棱锥
中,
底面
,四边形
为边长为
的菱形,
,
,
为
中点,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/06a19615-3e07-42ad-949a-ed64e7f05144.png?resizew=161)
(1)求证:直线
平面
;
(2)求直线
与
所成角大小.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d01872723102269f05c9d1b77c6e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/06a19615-3e07-42ad-949a-ed64e7f05144.png?resizew=161)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
您最近一年使用:0次
解题方法
6 . 已知正方体
的棱长为1.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/c4d7e159-1976-4188-a9c3-6c4d433e4bbe.png?resizew=166)
(1)求异面直线
与AC所成角的大小;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/c4d7e159-1976-4188-a9c3-6c4d433e4bbe.png?resizew=166)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de25bd0a6911c52d0d319c2318a67ef7.png)
您最近一年使用:0次
2023-01-31更新
|
1178次组卷
|
5卷引用:沪教版(2020) 一轮复习 堂堂清 第八单元 8.4 平面与平面的位置关系
沪教版(2020) 一轮复习 堂堂清 第八单元 8.4 平面与平面的位置关系(已下线)专题8.16 空间角大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)(已下线)专题2 求二面角的夹角(1)(已下线)第09讲 拓展三:二面角的传统法与向量法(含探索性问题,7类热点题型讲练)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)(已下线)第17讲 第八章 立体几何初步 章末重点题型大总结-【帮课堂】(人教A版2019必修第二册)
解题方法
7 . 平面
过正方体的顶点A,
平面
,
平面
,
平面
,则
与
所成角的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414844edd458857bdfc80bffa61cbf9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86eec8526479272d15bb3b171a46de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670684ed4962fcebce7b5a140510d066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef505e9ebc59446b99afbb93f16cc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670684ed4962fcebce7b5a140510d066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b6ff88181f69340d9830828d3803cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 如图,正三棱锥
中,
分别是
的中点,P为
上任意一点,则直线
与
所成角的大小是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad6c4af5e0cf9d9bc7e03e618925ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95226c64f0afdaa10b95ec097a0720ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
您最近一年使用:0次
解题方法
9 . 在长方体
中,异面直线
与
所成角的大小等于______ .
![](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/394c5d2f55221975503be8aa18022480.png)
您最近一年使用:0次
10 . 已知正四面体ABCD中,E是AB的中点,则异面直线CE与BD所成角的大小为______ .
您最近一年使用:0次