名校
解题方法
1 . 如图,在四棱锥
中,
平面PAD,△PAD为等边三角形,
//
,
,平面PBC交平面PAD直线l,E、F分别为棱PD,PB的中点.
∥
;
(2)求平面AEF与平面PAD所成锐二面角的余弦值;
(3)在棱PC上是否存在点G,使得
∥平面AEF?若存在,求
的值,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df3cbb0e21389791a038f7a9ce6a327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求平面AEF与平面PAD所成锐二面角的余弦值;
(3)在棱PC上是否存在点G,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3b1771fbc438ff888bd28bb1dadcee.png)
您最近一年使用:0次
2023-05-31更新
|
2279次组卷
|
8卷引用:新疆维吾尔自治区乌鲁木齐市第十二中学2024届高三上学期12月月考数学试题
新疆维吾尔自治区乌鲁木齐市第十二中学2024届高三上学期12月月考数学试题北京市首都师范大学附属中学2023届高三下旬阶段性检测数学试题(已下线)2023年新课标全国Ⅰ卷数学真题变式题15-18湖南省长沙市第一中学2022-2023学年高二下学期期末数学试题(已下线)第03讲 直线、平面平行的判定与性质(练习)北京市第十五中学2023-2024学年高二上学期期中考试数学试题(已下线)重难点突破06 立体几何解答题最全归纳总结(九大题型)-1北京市牛栏山一中2024届高三下学期学期考前热身(三模)数学试题
名校
2 . 如下图所示,在四棱锥
中,底面
是正方形,侧棱
底面
,点E,F分别是
,
上的动点,且
.
平面
;
(2)如果
,PC与底面ABCD所成角的正弦值为
,求平面PAE与平面AED夹角的余弦值.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c41158715d94c6c9ffebdee957d2618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351f24c3c3f745cb07320d7491916b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
您最近一年使用:0次
2023-02-22更新
|
257次组卷
|
2卷引用:新疆乌鲁木齐市第101中学2024届高三下学期5月月考数学试题
名校
解题方法
3 . 在三棱台
中,
平面
,
,
,
,
.
.
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25e8fc3dda4f8b45491514b6e22a962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2f39d3fcb1664705228e683c2cc3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570f8b295ee0c7c60e6fe1dbf054ff52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295aced98768ce261e00fe6660a427a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4fcf607b0710d12aaabd17fd053d83.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
您最近一年使用:0次
2023-07-09更新
|
780次组卷
|
9卷引用:新疆石河子第一中学2023-2024学年高二上学期9月月考数学试题
新疆石河子第一中学2023-2024学年高二上学期9月月考数学试题河北省邢台市2022-2023学年高一下学期期末数学试题河南省周口市2022-2023学年高一下学期期末数学试题(已下线)第一章 空间向量与立体几何 章末测试(基础)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)湖南省名校联盟2023-2024学年高二上学期入学摸底考试数学试题重庆市第七中学校2023-2024学年高二上学期期末模拟检测数学试题(已下线)8.6.1直线与直线垂直+8.6.2直线与平面垂直——课后作业(提升版)(已下线)重组1 高一期末真题重组卷(河北卷)B提升卷福建省泉州市安溪第一中学2023-2024学年高一下学期6月份质量检测数学试题
名校
解题方法
4 . 如图,在四棱锥
中,
平面
,
,底面ABCD是边长为4的菱形,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/795f868f-ed75-4857-8a92-b366d4066bc5.png?resizew=143)
(1)求证:
;
(2)求平面PAC与平面PCD夹角的余弦值.
![](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/c19f0fcacac715a1200770516d1e4a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/795f868f-ed75-4857-8a92-b366d4066bc5.png?resizew=143)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5d56d8170b764b80a672cd6c861921.png)
(2)求平面PAC与平面PCD夹角的余弦值.
您最近一年使用:0次
2023-01-13更新
|
201次组卷
|
2卷引用:新疆昌吉州行知学校2023届高三下学期第一次月考数学(理)试题
名校
5 . 在四棱锥
中,底面ABCD是等腰梯形,
,
,平面
平面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/3fddd46f-f511-43df-ad16-9b16f395655d.png?resizew=155)
(1)求证:
为直角三角形;
(2)若
,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a8b1c432c1266ec43fb9a78f7a77fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b77a5c3865855fbb3d24f9522ced8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3c74b930d4e691b519965e436f2c37.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/3fddd46f-f511-43df-ad16-9b16f395655d.png?resizew=155)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da7bcea5a45eeae211f5851f12a7517.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e4e97a4bd7675f12f73266254dd435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc407e2b3e9da16eba881fd7a83845a.png)
您最近一年使用:0次
2023-01-06更新
|
443次组卷
|
2卷引用:新疆部分学校2023届高三上学期第一次联考数学(理)试题
名校
6 . 如图所示,在棱长为
的正方体
中,
、
分别为
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/bb7b4776-404d-480a-aa16-6deb3de4c21b.png?resizew=230)
(1)求证:
;
(2)求二面角
的平面角的余弦值;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9880952857950577055578875ab29141.png)
![](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/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161f651ef002ac85870d46b04347b54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/bb7b4776-404d-480a-aa16-6deb3de4c21b.png?resizew=230)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4fd2d6a04fcc7386e762eb3e4ec078.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9354e0129cb2b6aedc93a945281ea08c.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b9e53e4677ae9e2b20d5f7ce0a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb23d765661577af47d975524537c1b2.png)
您最近一年使用:0次
2022-10-21更新
|
393次组卷
|
3卷引用:新疆乌鲁木齐市第八中学2022-2023学年高二上学期第一次月考数学试题
新疆乌鲁木齐市第八中学2022-2023学年高二上学期第一次月考数学试题新疆伊犁州霍城县第二中学2022-2023学年高二上学期期中考试数学试题(已下线)第一章 空间向量与立体几何(易错必刷40题14种题型专项训练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
名校
7 . 如图,在四棱锥
中,底面
是平行四边形,
,
平面
,
,
,F是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/a3347350-8414-49b0-9662-0bd2e7c87f3a.png?resizew=211)
(1)求证:
平面
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6be2b61f4a38e2ee2c1a01e00b3ae6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee98db8495cf1f203abe99795102e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb18c7c5391647214d4da31a88202d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20898991dfc7a72367a5c765685feb0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec8edf56d9e56851ac5bc63bae47532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/a3347350-8414-49b0-9662-0bd2e7c87f3a.png?resizew=211)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e6956d407141c5d3a08f840ffa8b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1dcba40b263c1119ea0a36651c7812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
2022-10-21更新
|
268次组卷
|
3卷引用:新疆维吾尔自治区喀什第二中学2022-2023学年高二上学期第一次月考数学数学试题
名校
解题方法
8 . 如图,
平面
,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/7f68c056-f362-451b-ac15-7f03d54bd305.png?resizew=228)
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)若二面角
的余弦值为
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80637f43cf748a2ce0aaf4cd0037749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883200c4d4e82a5411064a644aabfe33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28bb994c172c6e9a318f6bef13d149c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69fa988a1b4a8e1ef706f8ff773b038d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc82184408c19cc5f3474be38def4dc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/7f68c056-f362-451b-ac15-7f03d54bd305.png?resizew=228)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d888c0b616792a2c41ff180de99fbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(3)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed4e1bdc9d0df390a30d7c27d6d3a0ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1dd362f843e640ce551ad1787c9873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
您最近一年使用:0次
2022-10-20更新
|
576次组卷
|
6卷引用:新疆乌鲁木齐市第八中学2023届高三上学期第一次月考数学(理)试题
新疆乌鲁木齐市第八中学2023届高三上学期第一次月考数学(理)试题山东省青岛市部分中学2022-2023学年高二上学期12月教学质量检测数学试题广东省人大附中深圳学校2022-2023学年高二上学期期末数学试题山东省青岛市青岛第二中学2022-2023学年高二上学期12月月考数学试题天津市南开中学2023-2024学年高三上学期第五次统练数学试题(已下线)第一章 空间向量与立体几何(单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)
名校
9 . 如图,在四棱锥
中,底面ABCD是直角梯形,侧棱
底面ABCD,AB垂直于AD和BC,SA=AB=BC=2,AD=1,M是棱SB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/eecc847d-3654-4850-a209-c2e2d52535b2.png?resizew=236)
(1)求证:
平面SCD;
(2)求平面SCD与平面SAB所成锐二面角的余弦值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/eecc847d-3654-4850-a209-c2e2d52535b2.png?resizew=236)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f33fa5152ba27f7b8a28890cefca219.png)
(2)求平面SCD与平面SAB所成锐二面角的余弦值;
您最近一年使用:0次
2022-10-08更新
|
553次组卷
|
2卷引用:新疆阿克苏市生产建设兵团第一师高级中学2023届高三上学期第二次月考数学(理)试题
名校
10 . 如图,在四棱锥P-ABCD中,底面ABCD是正方形,侧棱PD⊥底面ABCD,PD=DC,E是PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/5f500796-8bf1-4115-87cc-f983bfd11f2d.png?resizew=235)
(1)求证:
平面EBD
(2)求PB与平面EBD所成的角的正弦值
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/5f500796-8bf1-4115-87cc-f983bfd11f2d.png?resizew=235)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
(2)求PB与平面EBD所成的角的正弦值
您最近一年使用:0次
2022-11-22更新
|
339次组卷
|
6卷引用:新疆维吾尔自治区喀什第二中学2022-2023学年高二上学期第一次月考数学数学试题