解题方法
1 . 如图,已知P为
外一点,
平面ABC,
.
![](https://img.xkw.com/dksih/QBM/2022/4/21/2962987948613632/2964235981144064/STEM/9c2cd854c380434ca55e988356c479e4.png?resizew=127)
(1)求证:
;
(2)若PA=AB=2,CP与平面ABC所成角的正切值为
,求AB与平面PBC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed8f7d3d7043d4b1eb98fc5c4e2fcd3.png)
![](https://img.xkw.com/dksih/QBM/2022/4/21/2962987948613632/2964235981144064/STEM/9c2cd854c380434ca55e988356c479e4.png?resizew=127)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90da62f1614568a0b1e5e47ea85e7e3c.png)
(2)若PA=AB=2,CP与平面ABC所成角的正切值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,已知PA=AC=PC=AB=a,
,
,M为AC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/ae110279-8d2e-4a9a-9d8b-b6397c51dee3.png?resizew=143)
(1)求证:
平面ABC;
(2)求直线PB与平面ABC所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbb05b8b630052ff544249ebd72d95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/ae110279-8d2e-4a9a-9d8b-b6397c51dee3.png?resizew=143)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7442b64b37f685bc3ae88ff450c1a8.png)
(2)求直线PB与平面ABC所成角的大小.
您最近一年使用:0次
2022-04-23更新
|
348次组卷
|
4卷引用:沪教版(2020) 必修第三册 同步跟踪练习 第10章 10.3.3 直线与平面所成的角
沪教版(2020) 必修第三册 同步跟踪练习 第10章 10.3.3 直线与平面所成的角上海市虹口区2018届高三上学期期末教学质量监控数学试题(已下线)上海市华东师范大学第二附属中学2022-2023学年高二下学期开学考试数学试题上海市宝山区海滨中学2023-2024学年高二上学期10月学业质量检测数学试题
解题方法
3 . 如图,在长方体
中,
,
,则
与平面
所成角的大小为______ ,
与平面
所成角的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af405392c66b86550a58f1cb9868717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f144992e1cbee34868abce1e5ad38c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775df7ba0dc94c15e9e706194a463f1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/8c1cf368-14e5-4924-85e5-62dfbce135b4.png?resizew=149)
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4 . 连接正方体每个面的中心构成一个正八面体(如图),下列说法正确的是______ .(选填序号)
①以正八面体各个面的中心为顶点的几何体为正方体;②直线AE与CF是异面直线;③ED与平面ABCD所成的角为45°;④平面
平面ABE;⑤平面
平面CDE.
①以正八面体各个面的中心为顶点的几何体为正方体;②直线AE与CF是异面直线;③ED与平面ABCD所成的角为45°;④平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf84ed033bd035c2fe7552badd5e447d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d98d25467d8a11ddeeb1e6e18eb704f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/e5eace6c-6b77-4675-972a-83602ad79358.png?resizew=168)
您最近一年使用:0次
2022-04-23更新
|
328次组卷
|
4卷引用:沪教版(2020) 必修第三册 同步跟踪练习 第11章 11.3.1 多面体
沪教版(2020) 必修第三册 同步跟踪练习 第11章 11.3.1 多面体(已下线)第11练 空间直线、平面的平行-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)(已下线)第08练 点线面的位置关系-2022年【暑假分层作业】高一数学(苏教版2019必修第二册)(已下线)核心考点07空间直线、平面的平行-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)
解题方法
5 . 如图,已知AB是平面
的一条斜线,点B为斜足,
,点O为垂足,BC为
内的一条直线,
,
,求斜线AB和平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8524a640b88637959e0aeb9d6b8b5314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df0c656386b2889c4556d8309508463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958749631250432/2962148966055936/STEM/65a456e9-ae72-4188-9752-251e7e96af0b.png?resizew=165)
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6 . 如图,在长方体
中,
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca8cbab2ee72946beceb799a711411d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb04914c4e8fb3483da44c67fe1809f.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958749631250432/2962148965982208/STEM/bafb3a76-d950-4f1f-9aa3-366129d34052.png?resizew=212)
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7 . 如图,四边形
为梯形,
,
,
,
,
,点
在
上,且
.现沿
将
折起至
的位置,使
.
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958751621644288/2962082452348928/STEM/4d626cfe-ca26-4782-8af8-27c64e3dbbba.png?resizew=343)
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953f11eb95bfc036d85b472f81c6fb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b6d3947d1ac5a2942ae58183acedf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f9fba8a4098c1a0515286eb8d616dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e340674361f3742dd118ccc82d23c741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dbbc3b3b87c64f4570b068749228b1.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958751621644288/2962082452348928/STEM/4d626cfe-ca26-4782-8af8-27c64e3dbbba.png?resizew=343)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604a7e1e37d514c1dd84b07d85e7cbe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0760712e3e2ea02b755b751e760d0c55.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642401af2d7fc2de640ff7f6a8715950.png)
您最近一年使用:0次
2022-04-20更新
|
537次组卷
|
4卷引用:2023版 湘教版(2019) 必修第二册 过关斩将 第4章 4.3 直线与直线、直线与平面的位置关系 4.3.2 空间中直线与平面的位置关系 第2课时 直线与平面垂直
21-22高二上·江苏南通·期中
8 . 在正方体ABCD-
中,E为
的中点,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
A.BD∥平面![]() |
B.直线![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.平面![]() |
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名校
解题方法
9 . 如图,在直三棱柱
中,
是边长为2的正三角形,
,M为
的中点,P为线段
上的动点,则下列说法正确的是_______ (填写序号)
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946828573319168/2948281571606528/STEM/24aeae2355c44e5eaa744583a2ccb510.png?resizew=213)
①
平面
②三棱锥
的体积的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83dbfddc6f98548699ed581e8c8608.png)
③存在点P,使得
与平面
所成的角为
④存在点P,使得
与
垂直
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946828573319168/2948281571606528/STEM/24aeae2355c44e5eaa744583a2ccb510.png?resizew=213)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f36f074d1dc1054c679236ec70dcaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
②三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790c0a17ee2d7181ee95da741694bd1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83dbfddc6f98548699ed581e8c8608.png)
③存在点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
④存在点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
您最近一年使用:0次
2022-03-31更新
|
1349次组卷
|
6卷引用:突破1.3 空间向量及其坐标表示(课时训练)
(已下线)突破1.3 空间向量及其坐标表示(课时训练)百师联盟2022届高三二轮复习联考(一)(全国卷)理科数学试题(已下线)查补易混易错点06 立体几何-【查漏补缺】2022年高考数学(理)三轮冲刺过关(已下线)第29练 空间向量及其运算的坐标表示(已下线)期中测试卷(基础篇)(范围:第一章+第二章椭圆)-2022-2023学年高二数学上学期同步知识梳理+考点精讲精练(人教B版2019选择性必修第一册)辽宁省大连育明高级中学2023-2024学年高二上学期期中考试数学试卷
10 . 如图,在三棱柱
中,
平面
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d6d44c8d4cb12b8a68c0e4949973aff.png)
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946843240095744/2948092220260352/STEM/a8057d1a776d4433b66885dac2fb82e1.png?resizew=267)
(1)求证:
平面
;
(2)若
,求
①
与平面
所成角的正弦值;
②直线
与平面
的距离.
![](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/9d6d44c8d4cb12b8a68c0e4949973aff.png)
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946843240095744/2948092220260352/STEM/a8057d1a776d4433b66885dac2fb82e1.png?resizew=267)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315052802c3c31d78d894cda26204224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e975f6c9fafab8fd7639dc0cd0f70a4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e975f6c9fafab8fd7639dc0cd0f70a4.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e975f6c9fafab8fd7639dc0cd0f70a4.png)
您最近一年使用:0次