1 . 如图,在三棱柱
中,
,
,
平面ABC.
若
,求直线
与平面
所成的角的大小;
在
的条件下,求二面角
的大小;
若
,
平面
,G为垂足,令
其中p、q、
,求p、q、r的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede6a60cad0e0b58e1549fda6e085719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/525c082c493ba275001f38dc748b7b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0653ca05309f7e7529e1f16a68d17fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca6c8e0b690a2cdd094712c91012950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2263d8ecf9438e5c91dab70ed4cd31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc65c549059934e69355d8ecc245da57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b5fc6634cde626760a73f8c6c3d20ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bebb86a8aae48d06d796a0cdb8f7359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37cc4c9a266d49fbc39c5222a11ffe29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d463df7c30f5e334c8e91ce71b600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a9995cb91b6b47041584b331d447f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e97965097d4b5c370160b871bd3bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09650050a128dd5b81a1e19c38cda8e4.png)
![](https://img.xkw.com/dksih/QBM/2018/12/10/2093870277378048/2095923696959488/STEM/baa0d5da853e40b48ee16563a3e3dd02.png?resizew=193)
您最近一年使用:0次
名校
解题方法
2 . 如图,在正四棱柱
中,
,
,点
是
的中点.
(1)求异面直线
与
所成角的余弦值;
(2)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/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/89ecb0a1-cac9-4a6d-b6ec-73133cd0a7bb.png?resizew=116)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48856dc77af21bf856c6ea77a9077e00.png)
您最近一年使用:0次
2018-06-30更新
|
3694次组卷
|
8卷引用:【区级联考】江苏省泰州市姜堰区2018-2019学年高二下学期期中考试数学(理)试题
2014高三·全国·专题练习
3 . 如图,在三棱柱
中,
平面
,
,且
.
![](https://img.xkw.com/dksih/QBM/2018/4/17/1926108677685248/1929403725086720/STEM/220ad74f31134c65bd0008e869c2c13b.png?resizew=188)
(1)求棱
与
所成的角的大小;
(2)在棱
上确定一点
,使二面角
的平面角的余弦值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e16f65c3a318220c2f5baac171bbb61.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/42d76cef03e6b2d02024495a840ab451.png)
![](https://img.xkw.com/dksih/QBM/2018/4/17/1926108677685248/1929403725086720/STEM/220ad74f31134c65bd0008e869c2c13b.png?resizew=188)
(1)求棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee992e4455f983dcec7c98d0e51e194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
您最近一年使用:0次
2018-04-22更新
|
696次组卷
|
3卷引用:江苏省泰州中学2017-2018学年高二4月月考数学(理)试题
名校
4 . 如图,在直三棱柱
中,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2019/4/17/2184575009333248/2185284563959808/STEM/0e0564a066234579a5d5685186465ef9.png?resizew=185)
(1)求证:
平面
;
(2)若
是正三角形,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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2019/4/17/2184575009333248/2185284563959808/STEM/0e0564a066234579a5d5685186465ef9.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b663363459ff3240d834eb778b3b53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894b409d03ba95b3c3b9b573bcb18f6a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec5e1101892994cdea8a2ce9a270585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2239c7b9107b82024cc9e3735440f12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894b409d03ba95b3c3b9b573bcb18f6a.png)
您最近一年使用:0次
2018-03-30更新
|
1098次组卷
|
7卷引用:江苏省泰州市姜堰第二中学2020-2021学年高三上学期学情检测二数学试题
江苏省泰州市姜堰第二中学2020-2021学年高三上学期学情检测二数学试题云南省昆明市2018届高三教学质量检查第二次统考理数试题【校级联考】河南省豫南九校2018-2019学年高二下学期第二次联考数学(理)试题2020届山东省潍坊市高三下学期开学考试数学试题(已下线)备战2020年高考数学之考场再现(山东专版)05(已下线)第9篇——立体几何与空间向量-新高考山东专题汇编山东省济南市实验中学2022-2023学年高二上学期10月月考数学试题
5 . 如图,在四棱锥
中,底面
是矩形,
垂直于底面
,
,点
为线段
(不含端点)上一点.
![](https://img.xkw.com/dksih/QBM/2018/3/21/1906895166308352/1907574670336000/STEM/2167642f37c94185af06eb010d7113fe.png?resizew=194)
(1)当
是线段
的中点时,求
与平面
所成角的正弦值;
(2)已知二面角
的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f74971de5a21a8df81850be14714fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/2018/3/21/1906895166308352/1907574670336000/STEM/2167642f37c94185af06eb010d7113fe.png?resizew=194)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(2)已知二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bff9fff7a158e95a7f5041629e7a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc953f0be1dafec1b4d1836cbafbf59.png)
您最近一年使用:0次
2018-03-22更新
|
386次组卷
|
2卷引用:江苏省泰州中学2017-2018学年高二4月月考数学(理)试题
名校
6 . 如图,四棱柱
中,侧棱![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
底面
,
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2018/3/9/1898637168279552/1900803531431936/STEM/492e9f0d50d14fdcbd60370576295723.png?resizew=174)
(1)证明:
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972f3bcfdd2653c5ab36611bdebb08db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/2018/3/9/1898637168279552/1900803531431936/STEM/492e9f0d50d14fdcbd60370576295723.png?resizew=174)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5d45ab52f512e79ab0f6cb435a6beb.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77012443217a7fde3f16a6aa6bf4615.png)
您最近一年使用:0次
2018-03-12更新
|
814次组卷
|
5卷引用:2020届江苏省泰州中学高三下学期3月网上检测(一)数学试题
解题方法
7 . 如图,四棱锥
的底面
是菱形,
与
交于点
,
底面
,点
为
中点,
.
(1)求直线
与
所成角的余弦值;
(2)求平面
与平面
所成锐二面角的余弦值.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc6f007dbf1c1a36eb031e520608403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecaf7a3fd8093e4f3e7122688e7b187.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/dc482998-72ec-41d1-b35c-7f81527f786f.png?resizew=165)
您最近一年使用:0次
2018-01-18更新
|
708次组卷
|
2卷引用:【校级联考】江苏省兴化市第一中学2017-2018学年第二学期高二月考试卷(理科)数学
名校
解题方法
8 . 如图,四棱锥
中,
平面
,底面
为直角梯形,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
,
,点
在棱
上,且
,则平面
与平面
的夹角的余弦值为
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/70a8de74-304d-4ea1-98c3-805523cfeaf3.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.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/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81d99776e84942a7ce7c1033bfed030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5af76a3b6180226a4c87db34c4e49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457c2ee2c0139622d2e5de9a51c106b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/70a8de74-304d-4ea1-98c3-805523cfeaf3.png?resizew=150)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-01-04更新
|
1149次组卷
|
6卷引用:江苏省靖江高级中学2023-2024学年高二下学期3月月考数学试题
江苏省靖江高级中学2023-2024学年高二下学期3月月考数学试题四川省石室中学2017-2018学年高二上学期半期考试数学(理)试题(已下线)狂刷38 空间向量及其应用-学易试题君之小题狂刷2020年高考数学(理)(已下线)第十二课时 课后 空间向量章末复习(已下线)9.6 立体几何与空间向量专项训练江苏省徐州市铜山区铜北中学2022-2023学年高一下学期3月学情调查数学试题
11-12高三·宁夏银川·阶段练习
名校
9 . 如图,四棱锥
的底面为矩形,
是四棱锥的高,
与
所成角为
,
是
的中点,
是
上的动点.
![](https://img.xkw.com/dksih/QBM/2016/12/29/1619414123896832/1619414124322816/STEM/095ead0c-61e0-4e5d-bd43-51f97ea6a349.png?resizew=226)
(1)证明:
;
(2)若
,求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2016/12/29/1619414123896832/1619414124322816/STEM/095ead0c-61e0-4e5d-bd43-51f97ea6a349.png?resizew=226)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a395778dcf588264f40e1cd8c96206d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c310aa0cddf8c787c3d21b737475a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37793a3a810e823e10c340986f55ddd.png)
您最近一年使用:0次
2017-02-08更新
|
1756次组卷
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4卷引用:2016届江苏省泰州市姜堰区高三下期初考试数学试卷
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解题方法
10 . 在正四面体
中,点
为
中点,点
为
中点,则异面直线
与
所成角的余弦值为_________ .
![](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://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572978653732864/1572978659737600/STEM/26f9b790-cc86-4f3d-8559-0bd118d6c692.png?resizew=239)
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2016-12-04更新
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624次组卷
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5卷引用:2015-2016学年江苏省泰州中学高二下二次质检理科数学卷