1 . 如图,长方体中
中,
,点P为面
的对角线
上的动点(不包括端点),PN⊥BD于N.
![](https://img.xkw.com/dksih/QBM/2021/10/19/2832962918006784/2833684082114560/STEM/695b8c39fe9644769b9c4cdbbcf554c0.png?resizew=209)
(1)若点P是
的中点,求线段PN的长度;
(2)设
,将PN表示为
的函数,并写出定义域;
(3)当PN最小时,求直线PN与平面ABCD所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b98a13eacfcc6743aa433d7674e18e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://img.xkw.com/dksih/QBM/2021/10/19/2832962918006784/2833684082114560/STEM/695b8c39fe9644769b9c4cdbbcf554c0.png?resizew=209)
(1)若点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8711eddf26d11fc974dfb6da4b640918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)当PN最小时,求直线PN与平面ABCD所成角的大小.
您最近一年使用:0次
2021-10-20更新
|
272次组卷
|
5卷引用:上海师范大学第二附属中学2021-2022学年高二上学期期中数学试题
上海师范大学第二附属中学2021-2022学年高二上学期期中数学试题上海市松江区第四中学2022-2023学年高二上学期期中数学试题(已下线)期中真题必刷压轴60题(18个考点专练)-【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)上海市宝山中学2021-2022学年高二上学期10月月考数学试题(已下线)10.3 直线与平面所成的角 (第4课时)(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020必修第三册)
2 . 在正方体
中,
是
的中点.
与
所成的角的大小;
(2)求直线
与平面
所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679748eab882a6be0fefd2cc300349a4.png)
您最近一年使用:0次
2021-09-06更新
|
401次组卷
|
2卷引用:上海市杨浦高级中学2023-2024学年高二上学期期中数学试题
3 . 如图,四棱锥
中,底面
为直角梯形,
,
,
平面
,
,
、
分别为
与
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/d3d1b26f-e588-4d10-911e-709693635edc.png?resizew=159)
(1)证明:
平面
;
(2)求直线
与平面
所成角的正切值.
![](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/9536a2be7b84612f45cc875a00c5a5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8e727e4efc22b49649f71ae9c9d84.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/b879e4b8a2e0dc40fdd94932ea8e9bb6.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/d3d1b26f-e588-4d10-911e-709693635edc.png?resizew=159)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2021-09-05更新
|
463次组卷
|
2卷引用:广西玉林市县级重点高中2021-2022学年高一下学期期中联考数学试题
4 . 如图①,圆O的直径AB=2,圆上两点C,D在直线AB的两侧,且∠CAB=45°;∠DAB=60°,沿直线AB将半圆ACB折起,使两个半圆所在的平面互相垂直(如图②).
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715351937728512/2799687618404352/STEM/b8b5638b-dd85-479d-a875-cc9dd2af42bf.png?resizew=498)
(1)求三棱锥O-BCD的体积;
(2)求直线CD与平面ABC所成角的正切值.
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715351937728512/2799687618404352/STEM/b8b5638b-dd85-479d-a875-cc9dd2af42bf.png?resizew=498)
(1)求三棱锥O-BCD的体积;
(2)求直线CD与平面ABC所成角的正切值.
您最近一年使用:0次
2021-09-02更新
|
100次组卷
|
2卷引用:广西岑溪市2020-2021学年高一下学期期中考试数学试题
名校
5 . 直三棱柱
中,底面
为等腰直角三角形,
,
,
,
是侧棱
上一点,设
.
![](https://img.xkw.com/dksih/QBM/2021/8/27/2795199625912320/2798647814389760/STEM/1b37a6a8-10ef-4518-b57a-111e98fd0c9d.png?resizew=209)
(1)若
,求
的值;
(2)若
,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/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d4b759e341f967a93fc478e795b72f.png)
![](https://img.xkw.com/dksih/QBM/2021/8/27/2795199625912320/2798647814389760/STEM/1b37a6a8-10ef-4518-b57a-111e98fd0c9d.png?resizew=209)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88517eaaa7c6f423f565f938404105a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e753dc81ed21f878fff89e98cccf24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
您最近一年使用:0次
2021-09-01更新
|
197次组卷
|
3卷引用:上海市交通大学附属中学2020-2021学年高二下学期期中数学试题
6 . 在直三棱柱
中,
,
.
![](https://img.xkw.com/dksih/QBM/2021/4/26/2708246553362432/2798101936340992/STEM/d2e7efc620994d5f94922362f34924bb.png?resizew=200)
(1)求异面直线
与
所成的角的大小;
(2)求直线
与平面
所成角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c330e73dbbf9e2c0f2fb755461e3c898.png)
![](https://img.xkw.com/dksih/QBM/2021/4/26/2708246553362432/2798101936340992/STEM/d2e7efc620994d5f94922362f34924bb.png?resizew=200)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2021-08-31更新
|
169次组卷
|
3卷引用:上海市亭林中学2020-2021学年高二下学期期中数学试题
上海市亭林中学2020-2021学年高二下学期期中数学试题上海师范大学第二附属中学2021-2022学年高二上学期期中数学试题(已下线)第3章 空间向量及其应用(基础、常考、易错、压轴)分类专项训练(原卷版)
名校
7 . 如图,在
中,
为
的中点,
分别在边
上,满足
,
交
于
.现将
沿
翻折至
,得四棱锥
.
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718775407984640/2794555656404992/STEM/f31edaa4-2341-4615-b18f-b8754d29232a.png?resizew=345)
(1)证明:
平面
;
(2)若直线
与平面
所成角的正切值为
,且
在平面
内的射影在
的内部,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c08b68b6d8104ccbd3540b493603b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666e81326945f168fc30291f1bb2fc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833ec2f9f93027c6f1f4147e77932725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718775407984640/2794555656404992/STEM/f31edaa4-2341-4615-b18f-b8754d29232a.png?resizew=345)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da483ea548666d382d88f468d8372078.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,在棱长为
的正方体中,求
![](https://img.xkw.com/dksih/QBM/2021/5/21/2725910730407936/2793311977250816/STEM/81dccee23d904575afb5df05195ef838.png?resizew=203)
直线
与
所成的角的大小
直线
与平面
所成的角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/2021/5/21/2725910730407936/2793311977250816/STEM/81dccee23d904575afb5df05195ef838.png?resizew=203)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c597ff77c65c5add6f50294e3eee9536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2021-08-24更新
|
365次组卷
|
3卷引用:海南省北京师范大学万宁附中2020-2021学年高一下学期期中考试数学试题
名校
9 . 如图,四棱锥
中,底面
为矩形,
,
,
平面
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/c0de9e2c-1923-43ad-a622-6c6e5f8ce8e3.png?resizew=184)
(1)证明:
平面
;
(2)若三棱锥
的体积为
,求直线
与平面
所成角的正切值;
(3)在第二问的条件下,若
为线段
中点,
为线段
上的动点,平面
与平面
是否互相垂直?如果垂直,请证明;如果不垂直,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/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/c0de9e2c-1923-43ad-a622-6c6e5f8ce8e3.png?resizew=184)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe0ccf24d760c77535a70c92dad145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(3)在第二问的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2021-07-23更新
|
862次组卷
|
4卷引用:天津市滨海新区塘沽第一中学2020-2021学年高一下学期期中数学试题
名校
10 . 如图,已知三棱柱
的底面是正三角形,侧面
是矩形,M,N分别为BC,
的中点,P为AM上一点,过
和P的平面交AB于E,交AC于F.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/da0daf59-17db-403e-b788-f9b90ff58cc3.png?resizew=161)
(1)证明:
,且
平面
;
(2)设O为
的中心,若
面
,且
,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/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/da0daf59-17db-403e-b788-f9b90ff58cc3.png?resizew=161)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8153c45760570e08dfcd14a527e6c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59d296654aa17749f8300ae1d1da0e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1d2501b32c5caae7046349a9e4cb9b.png)
(2)设O为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594ea5d6c0fea038a9c8c14a1b561f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2f83ac39a73f4f01fb8068a0556fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85987061f1bc095faaa296d32f13b316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467fa1170332b2e556e5f42fe6e2237c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1158eaa2e338f564eb18de5bef1d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1d2501b32c5caae7046349a9e4cb9b.png)
您最近一年使用:0次
2021-07-23更新
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523次组卷
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3卷引用:江苏省盐城市伍佑中学2020-2021学年高一下学期期中数学试题
江苏省盐城市伍佑中学2020-2021学年高一下学期期中数学试题上海市上海大学附属嘉定高级中学2022-2023学年高二上学期开学考试数学试题(已下线)专题15 立体几何解答题全归类(9大核心考点)(讲义)-1