名校
1 . 已知圆
的直径
,
圆
所在平面,
,点
是圆周上不同于
、
的一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/f1545863-8d2f-4ad2-84a5-ebb9446b7057.png?resizew=167)
(1)证明:
;
(2)已知
,点
是棱
上一点,若
与平面
所成角的余弦值为
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/f1545863-8d2f-4ad2-84a5-ebb9446b7057.png?resizew=167)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5148e7fc64ac3fed107192236f8e129d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b60870baa5e3fbc33a749aa5f0a94be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e699f6e1923284a5eecdc897bfbc2337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-01-18更新
|
425次组卷
|
3卷引用:新疆乌鲁木齐市第101中学2022-2023学年高二下学期开学考试数学试题
名校
2 . 如图,在多面体
中,四边形
是矩形,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e3a8f4ea4c49537514dd22064100f9.png)
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/b4146b39-5172-455e-95ca-7865cb927a8b.png?resizew=188)
(1)证明:
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e3a8f4ea4c49537514dd22064100f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307492a5106b38351e52cd4fff8b1ec8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/b4146b39-5172-455e-95ca-7865cb927a8b.png?resizew=188)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e49a850dd76dc1162ff2eda8791b772.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
您最近一年使用:0次
2023-01-16更新
|
282次组卷
|
2卷引用:新疆乌鲁木齐市第六十一中学2024届高三上学期12月月考数学试题
名校
解题方法
3 . 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
4 . 在四棱锥
中,平面
底面
,底面
是菱形,E是
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/e0b0249d-bbd4-496d-bd6c-4f8a3e887956.png?resizew=174)
(1)证明:
平面
.
(2)若四棱锥
的体积为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.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/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1caa5646539aed3720b6a999faac2793.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/e0b0249d-bbd4-496d-bd6c-4f8a3e887956.png?resizew=174)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
(2)若四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ada8f10b58cd3b5a2c07b22463e692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cead8bc78e04d9b776072adafea1e5f6.png)
您最近一年使用:0次
2023-01-12更新
|
986次组卷
|
5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(文)试题
名校
5 . 如图,棱长为2的正方体
中,动点P满足
.则以下结论正确的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/2c288325-2cf0-48d3-9280-62669be474e5.png?resizew=171)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52f174463660575727b2aba9e4fd162.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/2c288325-2cf0-48d3-9280-62669be474e5.png?resizew=171)
A.![]() ![]() ![]() |
B.直线![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2023-01-11更新
|
1313次组卷
|
4卷引用:新疆和田地区墨玉县2023-2024学年高二上学期期中考试数学试题
新疆和田地区墨玉县2023-2024学年高二上学期期中考试数学试题湖北省新高考联考协作体2022-2023学年高三上学期期末联考数学试题湖南省湘潭市湘潭县第一中学2022-2023学年高二下学期3月月考数学试题(已下线)模块三 专题3 题型突破篇 小题满分挑战练(2)
名校
解题方法
6 . 如图,在棱长为2的正方体ABCD-A1B1C1D1中,E,F分别是DD1,DB的中点,则下列选项中错误的是( )
A.EF![]() ![]() |
B.![]() |
C.EF与AD1所成角为60° |
D.EF与平面![]() ![]() |
您最近一年使用:0次
2023-01-08更新
|
2059次组卷
|
9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(文)试题
新疆昌吉州行知学校2023届高三下学期第一次月考数学(文)试题第8章 立体几何初步 章末测试(提升)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)(已下线)第18讲 基本图形位置关系(已下线)8.6.2 直线与平面垂直(1) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)13.2.3 直线和平面的位置关系(2)云南省红河州开远市第一中学校2022-2023学年高一下学期5月月考数学试题吉林省长春北师大附属学校2021-2022学年高二上学期第一次月考数学试题(已下线)第8章 立体几何初步 单元综合检测(重点)-《重难点题型·高分突破》(人教A版2019必修第二册)单元测试A卷——第八章?立体几何初步
名校
解题方法
7 . 如图,四棱柱
的底面
是菱形,
平面
,
,
,
,点
为
的中点.
平面
;
(2)求证:
;
(3)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923d409630f5331cf8e85fb6c584e31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb8c3e6d8e2843a2783a409e130bc0a.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d56631ddece296d71607fc907b56d2a.png)
您最近一年使用:0次
2023-01-06更新
|
2399次组卷
|
8卷引用:新疆喀什市2022-2023学年高一下学期期末数学试卷
新疆喀什市2022-2023学年高一下学期期末数学试卷(已下线)空间直线、平面的垂直(已下线)8.6.2 空间角与空间距离(学案)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)江苏省南通市如皋市2024届高三上学期期初考试押题卷数学试题2023年山西省运城市景胜中学业水平考试数学试题专题07B立体几何解答题天津市六校2019-2020学年高一下学期期末联考数学试题河南省许昌市许昌高级中学2023-2024学年高一下学期6月月考数学试题
名校
解题方法
8 . 如图,四棱锥
中,底面
是平行四边形,平面
底面
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/8347c7bb-6759-4a16-b023-f15ef24878a1.png?resizew=225)
(1)求证:平面
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc6db50a9709c3f4d84eee7bdf1250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b2cc1d0bfd22c88286880b9da1f6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e4907ad1efa41c6cefe931737328fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/8347c7bb-6759-4a16-b023-f15ef24878a1.png?resizew=225)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5f0cfc1049f84a04c81bd213afb8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c909cd1b6f3fa1ec39eb245e8f5c11c.png)
您最近一年使用:0次
2023-01-06更新
|
554次组卷
|
2卷引用:新疆伊犁州霍尔果斯市苏港中学2022-2023学年高二下学期第一次教学检测数学试题
名校
解题方法
9 . 如图,在直四棱柱
中,侧棱
的长为3,底面
是边长为2的正方形,
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/b5896a46-4235-4722-a12b-84144b5c7a16.png?resizew=159)
(1)证明:
平面
;
(2)求平面
与平面
的夹角的正切值;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/b5896a46-4235-4722-a12b-84144b5c7a16.png?resizew=159)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f11f1840eb8b17e7b07c3fe7e987a9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a463a03c549b0dba6d90e7f16a2af.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a463a03c549b0dba6d90e7f16a2af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a463a03c549b0dba6d90e7f16a2af.png)
您最近一年使用:0次
2023-01-03更新
|
846次组卷
|
6卷引用:新疆和田地区墨玉县2023-2024学年高二上学期期中考试数学试题
名校
10 . 在四棱锥
中,平面
底面ABCD,底面ABCD是菱形,E是PD的中点,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/e6a95353-0043-4fd0-82fe-b47e99b82296.png?resizew=140)
(1)证明:
平面EAC;
(2)求直线EC与平面PAB所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7fca40920c70c01c551e83d61e69b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/e6a95353-0043-4fd0-82fe-b47e99b82296.png?resizew=140)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
(2)求直线EC与平面PAB所成角的正弦值.
您最近一年使用:0次
2022-12-31更新
|
713次组卷
|
4卷引用:新疆乌鲁木齐市第一中学2022-2023学年高二下学期开学诊断性测试数学试题