名校
解题方法
1 . 如图1,
是边长为6的等边三角形,点
,
分别在线段
,
上,
,
,沿
将
折起到
的位置,使得
,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/40494b4a-3094-402c-bc5f-0a0cc9963e82.png?resizew=312)
(1)求证:平面
平面
;
(2)若点
在线段
上,且直线
与平面
所成角的正弦值为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df49b91d399a0b28d5ad86b84b1f42d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/40494b4a-3094-402c-bc5f-0a0cc9963e82.png?resizew=312)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac48b9ac8efbf41d6ab5242d247bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3aace91caec728e174daec29a3568ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
您最近一年使用:0次
2023-11-21更新
|
312次组卷
|
2卷引用:安徽省卓越县中联盟2023-2024学年高三上学期期中考试数学试题
名校
解题方法
2 . 如图,在四棱锥
中,四边形ABCD是菱形,
,
,点E是棱
上的一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/1e597253-bad7-4c0e-be50-33b3b0ba7380.png?resizew=181)
(1)求证:平面
平面
;
(2)若
,直线
与平面
所成角的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2551d93b674b9f8bcd0e88454c99eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/1e597253-bad7-4c0e-be50-33b3b0ba7380.png?resizew=181)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c85aeab3aeaf4367b711da8cde2e8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2215de6d4986954c95a5b711fd05aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7035d954e76a15924de818e7e10e924a.png)
您最近一年使用:0次
2023-11-19更新
|
205次组卷
|
2卷引用:安徽省芜湖市镜湖区安徽师大附中2023-2024学年高二上学期期中数学试题
名校
解题方法
3 . 如图,在正方体
中,点E,F分别是棱BC,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/8d17712f-9085-4601-9061-d5e00d621c02.png?resizew=160)
(1)求直线
与EF所成角的余弦值;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/8d17712f-9085-4601-9061-d5e00d621c02.png?resizew=160)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8035fc825a001d7d9a3dacd8271662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
您最近一年使用:0次
解题方法
4 . 已知菱形
如图①所示,其中
,现沿
进行翻折,使得平面
平面
,再过点B作
平面
,且
,所得图形如图②所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/479518e4-4e32-48b3-827b-1877a266a776.png?resizew=320)
(1)若点P满足
,且
平面
,求
的值;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c646c683fbe522edb7ea54fd3ad873d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d11f385a2ddc33739bb90f328614a8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/479518e4-4e32-48b3-827b-1877a266a776.png?resizew=320)
(1)若点P满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545b3d484d15f6e8d506133c3167822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d33288714812fc459b02153b0cbef1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
解题方法
5 . 已知正方体
中,
,
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddcc0295e334717dff21aaa3bf0dbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcedb75163ea581a8d72b4f5c24af951.png)
A.若![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
解题方法
6 . 直线
的方向向量为
,平面
的法向量分别为
,则下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd59d3a7dcc9837d9bb8d9eef70745e0.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-11-17更新
|
341次组卷
|
3卷引用:安徽省A10联盟2023-2024学年高二上学期11月期中考试数学试题
安徽省A10联盟2023-2024学年高二上学期11月期中考试数学试题安徽省合肥市巢湖市第一中学2023-2024学年高二上学期期中数学试题(已下线)模块一 专题2 A 空间向量的应用基础卷 期末终极研习室高二人教A版
名校
解题方法
7 . 堑堵指底面为直角三角形,且侧棱垂直于底面的三棱柱.如图,在堑堵
中,
,若
,则异面直线
与
所成角的余弦值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/191f00c8-290e-45cd-9eb9-f099854db95e.png?resizew=114)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269c684310d0f7b5b9bf0a291e7ee748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd0cb31530b4016c0a39b659995185b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/191f00c8-290e-45cd-9eb9-f099854db95e.png?resizew=114)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-17更新
|
540次组卷
|
6卷引用:安徽省A10联盟2023-2024学年高二上学期11月期中考试数学试题
安徽省A10联盟2023-2024学年高二上学期11月期中考试数学试题安徽省合肥市巢湖市第一中学2023-2024学年高二上学期期中数学试题江西省上饶市艺术学校2023-2024学年高二上学期12月月考数学试题(已下线)模块三 专题1 小题入门夯实练(1) 期末终极研习室(高二人教A版)(已下线)专题04 异面直线所成的角(期末选择题4)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)广东省深圳市深圳实验学校高中园2023-2024学年高二上学期期末考试数学试题
名校
解题方法
8 . 如图,在直棱柱
中,
,
,
,
是
的中点,点
在
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/8c417964-47ed-4563-a5d7-ab2d7e4d9a68.png?resizew=114)
(1)求证:
;
(2)求
与
所成角的余弦值;
(3)若
,求点
,
之间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca38004c7744a7567bef30f0674fe60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3cc9cccfb4c260dac05f4ed57e8c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/8c417964-47ed-4563-a5d7-ab2d7e4d9a68.png?resizew=114)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b201f1e798eb74963b98f2b0da4132.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1851ea60a25f3c76dcf01418bc9da0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2023-11-17更新
|
144次组卷
|
2卷引用:安徽省蚌埠市怀远县怀远禹泽学校、固镇县汉兴学校2023-2024学年高二上学期第三次月考数学试题
解题方法
9 . 如图,已知正方体
的棱长为
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/25bf1257-2b8b-4361-ad25-af28dd025328.png?resizew=159)
(1)求证:
平面
;
(2)求点
到平面
的距离;
(3)求平面
和底面
夹角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/25bf1257-2b8b-4361-ad25-af28dd025328.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd7cc5d9199856cb62ac8898664c931.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69bcb3226e013650b7d8827c31dd41d0.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69bcb3226e013650b7d8827c31dd41d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
您最近一年使用:0次
2023-11-16更新
|
241次组卷
|
3卷引用:安徽省亳州市涡阳县蔚华中学2023-2024学年高二上学期第三次月考数学试题
名校
解题方法
10 . 如图,在正四面体
中,
,
分别为
,
的中点,则异面直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/5ea32eb3-f7d9-4729-b45d-427fa5a3a5aa.png?resizew=160)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-15更新
|
573次组卷
|
5卷引用:安徽省蚌埠市怀远县怀远禹泽学校、固镇县汉兴学校2023-2024学年高二上学期第三次月考数学试题
安徽省蚌埠市怀远县怀远禹泽学校、固镇县汉兴学校2023-2024学年高二上学期第三次月考数学试题广东省深圳市福田区红岭中学2023-2024学年高二上学期期中数学试题江苏省苏州星海实验高级中学2023-2024学年高二上学期12月月考数学试题福建省厦门双十中学2023-2024学年高二上学期第二次月考数学试卷(已下线)专题04 异面直线所成的角(期末选择题4)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)