名校
1 . 已知正方体
的棱长为1,点P为侧面
内一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当点P到平面ABCD的距离等于到直线![]() |
D.当![]() |
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2022-11-09更新
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1143次组卷
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6卷引用:江苏省南京市2022-2023学年高二上学期期中数学试题
名校
解题方法
2 . 如图,在四棱锥
中,
平面
,已知
是四边形
内部一点(包括边界),且二面角
的平面角大小为
,则
面积的最大值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/03649a0b-52c2-4012-883d-27970ba7e9ef.png?resizew=138)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1daff79f6bc7266d566d85c0e82d1090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8787d38a2a6f1dbb0581ccff5ff24f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41984f53bb280ba8b5ac00a52ce2825.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/03649a0b-52c2-4012-883d-27970ba7e9ef.png?resizew=138)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-09更新
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324次组卷
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2卷引用:广东省深圳市宝安中学2022-2023学年高二上学期期中数学试题
名校
解题方法
3 . 如图,在圆柱
中,四边形
是其轴截面,
为
的直径,且
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/7198dfe6-84cd-48ec-a8e9-0a50f0c65c0b.png?resizew=174)
(1)求证:
;
(2)若直线
与平面
所成角的正弦值为
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385df6c7f8ee7ab503b6ed35933695b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6cc3789c0e9b7d1226aa0de3327599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23336f8fbac93195a6fcea070970de79.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/7198dfe6-84cd-48ec-a8e9-0a50f0c65c0b.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d96a5d40d0aea9f4398ca4d0fe9b0dd.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
您最近一年使用:0次
4 . 如图,在直三棱柱
中,
,
,
.M为侧棱
的中点,连接
,
,CM.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/3e027c31-3b4f-4d9e-a9e0-f4220bfc69a6.png?resizew=146)
(1)求
与平面
所成角的正弦值;
(2)求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ad3a578f403b9e6b97fa2dc955fc11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ef601ca1f9c4c031adab4ffed297f0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/3e027c31-3b4f-4d9e-a9e0-f4220bfc69a6.png?resizew=146)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8372f6eba66a0bd3587106daaf68d1.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0917cf53aa3b2770712a4108e5945d79.png)
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名校
解题方法
5 . 如图,长方体
中,
,
,
,点
是侧面
上的一个动点(含边界),
是棱
的中点,则下列结论正确的是________
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/55af4c7c-3944-4306-a5dc-0157e6b648b5.png?resizew=131)
①当
长度最小时,三棱锥
的体积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
②当
长度最大时,三棱锥
的体积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
③若保持
,则点
在侧面内运动路径的长度为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
④若
在平面
内运动,且
,则点
的轨迹为圆弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/55af4c7c-3944-4306-a5dc-0157e6b648b5.png?resizew=131)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06f5fe37478ba1c140b2bc90e13d7a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06f5fe37478ba1c140b2bc90e13d7a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
③若保持
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90dd18184d12e9c1d8d1fca40973166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd11ad586fb5b7a29d22b69c89ef5bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
6 . 如图,在棱柱
中,
平面ABCD,四边形ABCD是菱形,
,点N为AD的中点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/86a97277-9460-4665-8a7e-0ad98535a7b5.png?resizew=179)
(1)设M是线段
上一点,且
.试问:是否存在点M,使得直线
平面MNC?若存在,请证明
平面MNC,并求出
的值;若不存在,请说明理由;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f7a272ce1bf85337a4d50051c4fe0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/86a97277-9460-4665-8a7e-0ad98535a7b5.png?resizew=179)
(1)设M是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c494cf8d940860f0063afedbc375a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d4680b5fd79c9734c4439e28cdf3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d4680b5fd79c9734c4439e28cdf3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d9094c09c92610daca8a629d8fb908.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa8d3e72abf0bf439e003fc2cd9f78a.png)
您最近一年使用:0次
2022-11-08更新
|
578次组卷
|
4卷引用:山西省太原市第五十六中学校2022-2023学年高二上学期10月联考数学试题
名校
解题方法
7 . 如图,C是以AB为直径的圆O上异于A,B的点,平面
平面ABC,
为正三角形,E,F分别是PC,PB上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/fdfc67a7-035c-4e39-8792-03e0198c705f.png?resizew=182)
(1)求证:
;
(2)若
,
,求三棱锥
的外接球体积;
(3)若E,F分别是PC,PB的中点且异面直线AF与BC所成角的正切值为
,记平面AEF与平面ABC的交线为直线l,点Q为直线l上动点,求直线PQ与平面AEF所成角的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/fdfc67a7-035c-4e39-8792-03e0198c705f.png?resizew=182)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24d05b5b9502c2be337f9be84fe4ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04be58ea6ca37a850422631eb3e994d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf9718967af7a01c5b4866ea6f73bbb.png)
(3)若E,F分别是PC,PB的中点且异面直线AF与BC所成角的正切值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
您最近一年使用:0次
名校
解题方法
8 . 在棱长为2的正方体
中,
、
、
分别为
,
,
的中点,则下列选项正确的是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/9674dbc4-1aa9-4cac-9c8f-755263ff5f69.png?resizew=176)
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/9674dbc4-1aa9-4cac-9c8f-755263ff5f69.png?resizew=176)
A.![]() |
B.直线![]() ![]() ![]() |
C.三棱锥![]() ![]() |
D.存在实数![]() ![]() ![]() |
您最近一年使用:0次
2022-11-08更新
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628次组卷
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13卷引用:山东省东营市第一中学2021-2022学年高二上学期期中数学试题
山东省东营市第一中学2021-2022学年高二上学期期中数学试题辽宁省大连部分重点高中2022-2023学年高二上学期10月月考数学试卷山西省晋城一中教育集团南岭爱物学校2022-2023学年高二上学期第一次月考数学试题广东省广州市八十九中2022-2023学年高二上学期期中数学试题山东省青岛市青岛第二中学2022-2023学年高二上学期期中数学试题山东省青岛市青岛第二中学分校2022-2023学年高二上学期期中数学试题(已下线)综合测试卷(基础版)-【新教材优创】突破满分数学之2022-2023学年高二数学重难点突破+课时训练 (人教A版2019选择性必修第一册)广东省东莞市第四高级中学2023届高三上学期9月月考数学试题福建省厦门外国语学校2023届高三上学期第一次月考数学试题辽宁省沈阳市第十五中学2023-2024学年高二上学期第一次阶段测试数学试题江苏省无锡市市北高级中学2023-2024学年高二上学期期中数学试题广东省广州市培英中学2023-2024学年高二上学期期中数学试题山东省聊城颐中外国语学校2023-2024学年高二上学期期中考试数学试题
解题方法
9 . 如图,四边形
是边长为
的菱形,
,四边形
为矩形,
,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/2022/11/5/3103298710667264/3105103960276992/STEM/2c488ac29c7d488c9195f1f5130ea6b8.png?resizew=175)
(1)求二面角
的大小;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9778dc168ece0bbeb6c91fc42c6d7211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc532cfe64300cb3da9e04a307c957a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc45b089f5323ac19636fc84465e60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2022/11/5/3103298710667264/3105103960276992/STEM/2c488ac29c7d488c9195f1f5130ea6b8.png?resizew=175)
(1)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bba4d26e5308c3a3fad70a4c8d177f7.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281db65d019f6f77dc0dfcc675ce93d1.png)
您最近一年使用:0次
解题方法
10 . 如图在平行六面体
中,
,
,
,
,
、
、
分别为
,
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/8b728c42-3ee9-4c7b-ab22-22c9aade81ad.png?resizew=239)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb060601594cd76375cd88070c013b40.png)
(2)求
和
所成角的余弦值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3e58edd1f900ca82bb2a3058293f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e7ac80553cc0af403a61741f3e351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/8b728c42-3ee9-4c7b-ab22-22c9aade81ad.png?resizew=239)
(1)求证:
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