名校
解题方法
1 . 如图,在四棱锥
中,底面
是边长为1的正方形,
,
、
分别是
、
的中点.
平面
;
(2)若二面角
的大小为
,
(ⅰ)求
与
所成角的余弦值;
(ⅱ)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553dcd4a2d14d887ff40a307e81d1d3b.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/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95fd77c97244c7c5f84ca5e3fcc28e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(ⅱ)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
名校
2 . 如图所示,正三棱柱
所有棱长均为
分别为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/69811dbe-6865-448c-bfa2-de93a484acd3.png?resizew=182)
(1)求三棱锥
的体积;
(2)求直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e182deb919981d7346d977e5f24ff1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29e9b2ce4da8f9ce0795ae3f01e9e6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/69811dbe-6865-448c-bfa2-de93a484acd3.png?resizew=182)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be3bcc464f8c7ef87dff250f2f9038e0.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
解题方法
3 . 如图,在四棱锥
中,
底面
,且底面
为正方形,
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/97f8cb23-4d43-40e1-8285-37df4f52f18b.png?resizew=201)
(1)求证:
;
(2)求证:
平面
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6f9f83594cd903d39b833eb6c389c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b5bb698739f3d8252aa307ec46e5f6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/97f8cb23-4d43-40e1-8285-37df4f52f18b.png?resizew=201)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1ac7e4a2bcadf49838113ab6d95950.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c27a8fd3bf5b89a16dbbe1a8230653c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
名校
解题方法
4 . 如图在棱长为2的正方体
中,点
是
的中点,求异面直线
和
所成的角的余弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11450be04a7703124c09f515ffac6327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9756b7c2a9f0cb5a1b025ad4821abdcd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/842f8160-f017-4e37-b2c9-db6588bee5eb.png?resizew=161)
您最近一年使用:0次
解题方法
5 . 如图,在正四棱柱
中,底面边长为2,高为4.
![](https://img.xkw.com/dksih/QBM/2022/9/28/3076206146207744/3081326282309632/STEM/f2806797176c486bb76057e7768dd70d.png?resizew=233)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a0e00113872f921116b6c0c3177d0f.png)
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2022/9/28/3076206146207744/3081326282309632/STEM/f2806797176c486bb76057e7768dd70d.png?resizew=233)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a0e00113872f921116b6c0c3177d0f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
您最近一年使用:0次
2022-10-05更新
|
946次组卷
|
5卷引用:山东省济宁市泗水县2022-2023学年高二上学期期中考试数学试题
名校
解题方法
6 . 如图,已知
是底面为正方形的长方体,
,
,点
是
上的动点.
为
的中点时,求异面直线
与
所成的角的余弦值;
(2)求
与平面
所成角的正切值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c83f15fe532ff5e4a55ac07af4b7b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d125488e31956301c61d1ea1136f752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655c413f509068d30b165f9d92bdba0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24006d28116bc097933cc90bcc0ea69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ec06f50894c259172c934481b196b2.png)
您最近一年使用:0次
2022-05-25更新
|
1001次组卷
|
4卷引用:山东省菏泽外国语学校2023-2024学年高一下学期第二次月考数学试题
7 . 如下图,在四棱锥
中,底面
是正方形,平面
平面
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/8006d3ac-6e7a-4b3b-933b-1d6da0038a8d.png?resizew=151)
(1)求
与
所成角的余弦值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877582b5387278008d14fe5932622fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac14dc6acbe6fd959ea52a3ad489879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/8006d3ac-6e7a-4b3b-933b-1d6da0038a8d.png?resizew=151)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2389ee25be6516208b783405add175d.png)
您最近一年使用:0次
2021-09-15更新
|
4036次组卷
|
13卷引用:2015年山东省春季高考数学真题
2015年山东省春季高考数学真题(已下线)考向34 空间中的垂直关系(已下线)考向23 点、直线、平面之间的位置关系-备战2022年高考数学一轮复习考点微专题(上海专用)江西省遂川中学2021-2022学年高二上学期第二次月考数学(文)试题(A卷)北京师范大学附属实验中学2021-2022学年高二年级12月月考数学试题(已下线)专题10 立体几何线面位置关系及空间角的计算(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)专题10 立体几何线面位置关系及空间角的计算(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)第11讲 直线与平面、平面与平面的位置关系-【寒假自学课】2022年高一数学寒假精品课(苏教版2019必修第二册)(已下线)专题20 立体几何综合大题必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)(已下线)查补易混易错点05 空间向量与立体几何-【查漏补缺】2022年高考数学三轮冲刺过关(新高考专用)(已下线)第02讲 玩转立体几何中的角度、体积、距离问题-【暑假自学课】2022年新高二数学暑假精品课(苏教版2019选择性必修第一册)(已下线)第八章立体几何初步知识-2(已下线)6.5.2平面与平面垂直(课件+练习)
名校
8 . 已知圆锥的体积为
,底面半径
与
互相垂直,且
;
是母线
的中点.
![](https://img.xkw.com/dksih/QBM/2020/11/27/2601870764351488/2605516177252352/STEM/9c2fc2e5-070a-4360-bfee-762ec8712f71.png?resizew=235)
(1)求圆锥的表面积
(2)求异面直线
与
所成角的大小(结果用反三角函数表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f16e77b039842ae40a4b04c527655a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b5e290c6b2c5508a3bf6117afbf7e1.png)
![](https://img.xkw.com/dksih/QBM/2020/11/27/2601870764351488/2605516177252352/STEM/9c2fc2e5-070a-4360-bfee-762ec8712f71.png?resizew=235)
(1)求圆锥的表面积
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
您最近一年使用:0次
2020-12-02更新
|
362次组卷
|
4卷引用:黄金卷04-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(山东高考专用)
(已下线)黄金卷04-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(山东高考专用)上海市杨浦区2021届高三上学期0.5模期中数学试题上海市川沙中学2022届高三上学期第一次月考数学试题沪教版(2020) 必修第三册 达标检测 期中测试
解题方法
9 . 已知直角梯形ABCD中,
,
,
,将直角梯形ABCD(及其内部)以AB所在直线为轴顺时针旋转90°,形成如图所示的几何体,其中M为
的中点.
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494636811902976/2495267718889472/STEM/eb6c6cd8-5fbc-48fa-96ff-107f7e9f86fb.png)
(1)求证:
;
(2)求异面直线BM与EF所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0254c51c4e3e5ca7190cb4cd97defbb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8192018a58bb1fe23769a48a4d9042ed.png)
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494636811902976/2495267718889472/STEM/eb6c6cd8-5fbc-48fa-96ff-107f7e9f86fb.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b988a736bab20406261e998320cdda.png)
(2)求异面直线BM与EF所成角的大小.
您最近一年使用:0次
2020-06-29更新
|
432次组卷
|
3卷引用:山东省济南市2020届高三6月针对性训练(仿真模拟)数学试题
名校
10 . 如图,四棱锥
的底面是边长为1的正方形,
垂直于底面
,
.
![](https://img.xkw.com/dksih/QBM/2020/4/17/2443472766517248/2443670787719168/STEM/d845839c114544f29f68ede7f346338b.png?resizew=271)
(1)求平面
与平面
所成二面角的大小;
(2)设棱
的中点为
,求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc2e11ba41dd6be2c30615229068a7e.png)
![](https://img.xkw.com/dksih/QBM/2020/4/17/2443472766517248/2443670787719168/STEM/d845839c114544f29f68ede7f346338b.png?resizew=271)
(1)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21665d21bbfb04410c78345de1fd15ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)设棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
您最近一年使用:0次
2020-04-17更新
|
1333次组卷
|
7卷引用:山东省济宁市邹城一中2019-2020学年高一数学下学期期中检测试题