名校
1 . 如图,在四棱锥
中,底面ABCD是边长为1的菱形,
,
平面ABCD,
,E为PA的中点.
(1)求证:平面
平面ABCD;
(2)求二面角
的正切值;
(3)求点E到平面PBC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f1897a7e856b42f8cee0f286ad913d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5064f5ce5ac8428e277fd578da84ec6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/17/3b9d0865-b7f3-4268-a829-045f62dd1726.png?resizew=148)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c940226a2a3388cb1366e5dc942900c7.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb7b4ade95e42c78057dee1f1e274a3.png)
(3)求点E到平面PBC的距离.
您最近一年使用:0次
2023-08-16更新
|
610次组卷
|
5卷引用:四川省巴中绵实外国语学校2022-2023学年高二上学期期中考试数学试题
四川省巴中绵实外国语学校2022-2023学年高二上学期期中考试数学试题上海市奉贤区致远高级中学2022-2023学年高二上学期10月月考数学试题浙江省宁波市北仑中学2022-2023学年高二上学期期中数学试题(2-10班+外高班使用)(已下线)重难点01 空间角度和距离五种解题方法-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)(已下线)专题05异面直线间的距离(1个知识点4种题型1种高考考法)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(沪教版2020必修第三册)
名校
2 . 如图,在四棱锥
中,
面
,
,
,点
分别为
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/71654a21-d300-4c81-a8f2-9f2d03018911.png?resizew=176)
(1)证明:直线
平面
;
(2)求二面角
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/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4762d59261265112fef9ac74d5bb9a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3ca1c27bdc0102bf2c6b306ddd1d95.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/71654a21-d300-4c81-a8f2-9f2d03018911.png?resizew=176)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc6bc85b019e9d158ca1d92feed796e.png)
您最近一年使用:0次
2023-01-15更新
|
1350次组卷
|
11卷引用:四川省达州市2022-2023学年高二上学期期末监测数学(理科)试题
四川省达州市2022-2023学年高二上学期期末监测数学(理科)试题(已下线)第8章 立体几何初步 重难点归纳总结-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)专题2 求二面角的夹角(1)(已下线)上海市华东师范大学第二附属中学2023届高三下学期2月月考数学试题(已下线)8.6.3 平面与平面垂直(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)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)上海市华东师范大学第二附属中学2023届高三最后一模数学试题上海市嘉定区第一中学2024届高三上学期10月月考数学试题上海市同济大学第二附属中学2024届高三上学期期中数学试题海南省琼海市海桂中学2023-2024学年高二上学期期中考试数学试题(B卷)陕西省兴平市南郊高级中学2023-2024学年高二上学期第三次质量检测数学试题
名校
3 . 如图所示,在四棱锥
中,底面
是边长为2的正方形,其它四个侧面都是侧棱长为
的等腰三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/9ddb9af6-7663-480c-987e-8bbb9348e43a.png?resizew=202)
(1)求二面角
的大小;
(2)在线段
上是否存在一点
,使平面
平面
?若存在,请指出点
的位置并证明,若不存在请说明理由.
![](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/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/9ddb9af6-7663-480c-987e-8bbb9348e43a.png?resizew=202)
(1)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22583ac400216f5aa56a84284efe4b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
4 . 如图,以等腰直角三角形斜边
上的高
为折痕,把
和
折成互相垂直的两个平面后,则下列四个结论中错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/dc123dc1-7c70-4c34-acb8-73b2779a4d0f.png?resizew=304)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/dc123dc1-7c70-4c34-acb8-73b2779a4d0f.png?resizew=304)
A.![]() | B.![]() |
C.平面![]() ![]() | D.二面角![]() ![]() |
您最近一年使用:0次
2022-11-24更新
|
375次组卷
|
4卷引用:四川省资阳市安岳县安岳县周礼中学2022-2023学年高二上学期期中数学试题
四川省资阳市安岳县安岳县周礼中学2022-2023学年高二上学期期中数学试题(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)8.6.3 平面与平面垂直(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)专题强化二:异面角、线面角、二面角的常见解法 (2)
名校
解题方法
5 . 在如图所示的圆柱
中,
为圆
的直径,
是
上的两个三等分点,
,
,
都是圆柱
的母线.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/153e226e-1b22-40d5-804e-0a2457786a4b.png?resizew=117)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
平面
;
(2)若
已知直线
与平面
所成角为
求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4083c581c6027c4b2ae7e3b3749f485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/153e226e-1b22-40d5-804e-0a2457786a4b.png?resizew=117)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18a4d4a3fb952993a0f13a22ba325b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609df3ef608f098007aa66c729e45ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204b4296ac8f666539606be2baedcf03.png)
您最近一年使用:0次
2022-11-10更新
|
385次组卷
|
4卷引用:四川省泸州市叙永第一中学校2022-2023学年高二上学期开学考试数学试题
四川省泸州市叙永第一中学校2022-2023学年高二上学期开学考试数学试题四川省叙永第一中学校2023-2024学年高三上学期“一诊”模拟测试(一)理科数学试题(已下线)江苏省八市2023届高三二模数学试题变式题17-22福建省永春第一中学2022-2023学年高二下学期6月月考数学试题
6 . 如图,在四棱锥P—ABCD中,底面ABCD为矩形,PA⊥平面ABCD,点E在线段PC上,PC⊥平面BDE.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/481eaf56-2e4e-449c-8e46-8991499eb7bb.png?resizew=184)
(1)证明:BD⊥平面PAC;
(2)若
,求二面角B—PC—A的正切值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/481eaf56-2e4e-449c-8e46-8991499eb7bb.png?resizew=184)
(1)证明:BD⊥平面PAC;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b10835116b9b777a666b438c907b49.png)
您最近一年使用:0次
2022-10-30更新
|
637次组卷
|
5卷引用:四川省泸州市龙马高中2022-2023学年高二上学期期中考试数学(理)试题
四川省泸州市龙马高中2022-2023学年高二上学期期中考试数学(理)试题广东省广州市花都区2023届高三上学期10月调研数学试题江西省宜春市丰城市2022-2023学年高二上学期10月期中考试数学试题(已下线)专题8-4 非建系型:探索性平行与垂直证明及求角度(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
7 . 已知直三棱柱
中,
为正方形,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/2022/7/14/3022512448200704/3027139909427200/STEM/2ca0320881ad4cd9b6f0b774466c786e.png?resizew=165)
(1)证明:
平面
;
(2)若
是边长为2正三角形,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e316b0bba952ea2164c5321c6c3c41f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876f208635a511c8dc89da1dad21c868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2022/7/14/3022512448200704/3027139909427200/STEM/2ca0320881ad4cd9b6f0b774466c786e.png?resizew=165)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d6d03e83c2e2f6a03bf30dd1038dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcfe69b939fd1c271747fe9d37ccdf9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82647a99e63a821cef77923a0682ef6c.png)
您最近一年使用:0次
2022-07-21更新
|
404次组卷
|
2卷引用:四川省凉山彝族自治州2021-2022学年高一下学期期末数学(理)试题
名校
解题方法
8 . 正方体
中,二面角
的平面角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf606fa4e3090df2ad3cd3b60c6f239.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-15更新
|
909次组卷
|
3卷引用:四川省巴中市恩阳区2022-2023学年高二上学期期中数学试题
名校
9 . 在正方体
中,下列结论正确的有( )
①异面直线
与
所成角的大小为
; ②直线
与直线
垂直;
③直线
与平面
所成角的正切值为
; ④平面
与平面
夹角的正切值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
③直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0006f9ab30d42854e5c71c96a15ad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
A.①② | B.①②③ | C.②③④ | D.③④ |
您最近一年使用:0次
2022-07-04更新
|
419次组卷
|
6卷引用:四川省成都市蓉城名校联盟2021-2022学年高二下学期期中联考文科数学试题
名校
10 . 如图,点O是正方形ABCD的中心,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/3fbc1c4f-5f9a-4b21-a4ff-a09d89ce0138.png?resizew=268)
(1)证明:
平面ABCD;
(2)若直线OE与平面ABCD所成角的正弦值为
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb52f9b226b1db3f6f9f055948bd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11e72609ba0fbefe03c9f24165cbf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99461e5fc6016bdabcc43b8224f10072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8066f2f5e880d2217bc7f576920aaf69.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/3fbc1c4f-5f9a-4b21-a4ff-a09d89ce0138.png?resizew=268)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
(2)若直线OE与平面ABCD所成角的正弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c9c2c831a0552a7c934365bc49ad3f.png)
您最近一年使用:0次