名校
解题方法
1 . 如图,正方体
的棱长为2,E为
的中点,点M在
上.
平面
.
的中点;
(2)求直线EM与平面MCD所成角的大小,及点E到平面MCD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0285afe567ca0b32f0ccafc30167cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
(2)求直线EM与平面MCD所成角的大小,及点E到平面MCD的距离.
您最近一年使用:0次
7日内更新
|
196次组卷
|
2卷引用:浙江省杭州师范大学附属中学2024届高三下学期高考适应性考试数学试卷
名校
2 . 如图,在四棱锥
中,平面
内存在一条直线
与
平行,
平面
,直线
与平面
所成的角的正切值为
,
,
.
是直角梯形.
(2)若点
满足
,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca2a4dbf01ea9a4837573fb433116d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a301baf6cc0628366e6661a87a2d93ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd78dfe6e52155dbee08d33ae63be40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51c49eed6d720f2dc30cf1a79721bfd.png)
您最近一年使用:0次
2024-05-08更新
|
1618次组卷
|
5卷引用:浙江省强基联盟2024届高三下学期5月全国“优创名校”联考数学试题
3 . 如图,在直三棱柱
中,
,
,
,点
分别是
的中点,点
是线段
上一点,且
平面
.
(1)求证:点
是线段
的中点;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883fc5e3faf39829d60804b59deb1730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef8866ccf160ddc441bf69c5d3a3d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1857eadd6b23a87a1a5b4ffff584efd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc674d2604ff270dd6abc66b35e86e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/30/34b42285-132b-4679-a7bd-3aa9001c5480.png?resizew=126)
(1)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c044d4c8a326a2270449a89304ff65.png)
您最近一年使用:0次
4 . 已知四棱锥
中,底面
为平行四边形,
,平面
平面
.
(1)若
为
的中点,证明:
平面
;
(2)若
,求平面
与平面
所夹角的余弦值.
![](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/413c799e8fb983e6274ec4be9ff6c431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91aa035904a72103b1099abb44fe639d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/4/0dc2112e-cc3f-462e-8cce-a3f4308a81be.png?resizew=132)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95475bfc06e884754eb4a455c3f434e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb18df70ba0d71d703fb02770746347f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96ed3ecedad4f0bfeea72f52e5b2614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
名校
5 . 已知平面
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3808849630e4031af37386c87321d2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-12-25更新
|
785次组卷
|
14卷引用:2018年浙江省名师原创预测卷(三)
2018年浙江省名师原创预测卷(三)2020年浙江省名校高考预测冲刺卷(一)浙江省宁波市宁海中学2021届高三下学期3月高考适应性考试数学试题(已下线)【新东方】【2021.5.19】【SX】【高三下】【高中数学】【SX00161】四川省成都市2024届高三一模数学(理)试题四川省成都市2024届高三一模数学(文)试题贵州省铜仁市思南中学2019-2020学年高二(下)期末数学(文科)试题(已下线)第30练 直线、平面平行的判定与性质-2021年高考数学(文)一轮复习小题必刷(已下线)第31练 直线、平面平行的判定与性质-2021年高考数学(理)一轮复习小题必刷重庆市乌江新高考协作体2022-2023学年高一下学期期末数学试题黑龙江省哈尔滨市2022-2023学年高一下学期期末数学试题(已下线)模块一 专题1 立体几何(1)高三期末北京市第二中学2023-2024学年高一下学期期中考试数学试题(已下线)11.3.3 平面与平面平行-【帮课堂】(人教B版2019必修第四册)
名校
解题方法
6 . 如图所示,
是圆锥的一部分(A为圆锥的顶点),
是底面圆的圆心,
,
是弧
上一动点(不与
、
重合),满足
.
是
的中点,
.
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913473877712896/2921446104268800/STEM/dd013b3a-2267-4654-8cdc-88b6edd2d93f.png?resizew=136)
(1)若
平面
,求
的值;
(2)若四棱锥
的体积大于
,求三棱锥
体积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7d022859b8853d7be8f2bf6487a693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8026ad627e8ae6c4acb9140a02181f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b710be34d39a3058bad08e397849e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5811e450dcff0e190c3d7378c08797c5.png)
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913473877712896/2921446104268800/STEM/dd013b3a-2267-4654-8cdc-88b6edd2d93f.png?resizew=136)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3123da0313d458c833e82aaa234b9117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed01d1ff5a7f21a68fb3a1e5c7f393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
(2)若四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28ba8a560e3b54f9346f2a6a805c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40cc229e0951e5d141f3c8341d17c593.png)
您最近一年使用:0次
2022-02-21更新
|
1651次组卷
|
6卷引用:浙江省2022届高三毕业生“极光杯”线上综合测试IV数学试题
浙江省2022届高三毕业生“极光杯”线上综合测试IV数学试题浙江省舟山市普陀中学2022届高三下学期3月月考数学试题(已下线)重难点03 立体几何与空间向量-2022年高考数学【热点·重点·难点】专练(全国通用)湖南省长沙市雅礼中学2024届高三上学期月考(二)数学试题(已下线)湖南省长沙市雅礼中学2024届高三上学期月考(二)数学试题变式题19-22上海市闵行区七宝中学2024届高三下学期3月月考数学试题
解题方法
7 . 1.如图,正方形
所在平面与等边
所在平面成的锐二面角为
,设平面
与平面
相交于直线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/217d3bf8-ba77-4164-9016-c53aa81161ff.png?resizew=167)
(1)求证:
;
(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/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/217d3bf8-ba77-4164-9016-c53aa81161ff.png?resizew=167)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56adc934c9ad3cb261c5cbdc346b9631.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,已知四棱锥
,正三角形
与正三角形
所在平面互相垂直,
平面
,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/a602ff75-b14a-4d30-bafe-ebc5e264fae1.png?resizew=166)
(1)求证:
;
(2)若
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963a91995abd4927d75406d16e10a81f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/a602ff75-b14a-4d30-bafe-ebc5e264fae1.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f90126f831d6600522ecaa66c2a8b9c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa6f8d908e49742ea6154dda11d86a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次
2020-04-24更新
|
310次组卷
|
3卷引用:2020届浙江省衢州、丽水、湖州三地市高三下学期4月教学质量检测数学试题
9 . 如图,在四棱锥
中,四边形ABCD是矩形,平面
平面ABCD,
,E是SB的中点,M是CD上任意一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/f228ccfd-2503-473a-b729-1ea4c6802627.png?resizew=171)
(1)求证:
;
(2)若
,
,
平面SAD,求直线BM与平面SAB所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877582b5387278008d14fe5932622fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e270a358087318deb85f1e955f14375.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/f228ccfd-2503-473a-b729-1ea4c6802627.png?resizew=171)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c0628fd53118477b46fd8172c7dbfd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f60936f1fdbbb23380a600e8c56662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65204d1dd2bca2e33c2a3f3d9d22655e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0285afe567ca0b32f0ccafc30167cc.png)
您最近一年使用:0次
名校
解题方法
10 . 已知点P不在直线l、m上,则“过点P可以作无数个平面,使得直线l、m都与这些平面平行”是“直线l、m互相平行”的( )
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2020-05-03更新
|
344次组卷
|
2卷引用:2019届浙江省绍兴市诸暨市高三下学期高考适应性考试数学试题