2023高三·全国·专题练习
解题方法
1 . 已知平面
,直线AB和CD在N内的射影分别为
,
,在M内的射影分别为
,
,若
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e39b6895979624b695419dd726177e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c94a6f24e6fae9888155f8461f878d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfd7d66db3845617ea37cc931def500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f337f72b37efc82ffcccb5e91ec327c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
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2 . 已知正方体
中,点
是线段
的中点,则下列说法正确的是( )
![](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/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
A.直线![]() ![]() ![]() | B.直线![]() ![]() |
C.点![]() ![]() | D.直线![]() ![]() |
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2023-12-30更新
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332次组卷
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3卷引用:华大新高考联盟2024届高三上学期11月教学质量测评(新教材卷)数学试题
解题方法
3 . 如图所示,正方体
的棱长为4,
,
分别是棱
,
上的动点,且
,当
四点共面时,点
到平面
的距离为( )
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f8eebda19eded2b059774a8c2666c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083c8efb7e5a940faaaee95289f7c66e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431e8bf1a5f9ac9a2ec82c11f31a4afe.png)
A.![]() | B.![]() | C.![]() | D.3 |
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名校
解题方法
4 . 如图,在四棱锥
中,底面
是平行四边形,
分别为
上的点,且
.
(1)证明:
平面
;
(2)若
平面
为
的中点,
,求二面角
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/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac4ee9a98647379757a6f643fb73438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c781fc002d462d7be259f2235f63a1f8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/657a9728-5e11-4395-a7fa-febb29aa5750.png?resizew=158)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d46554105150391e671609fc6348a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068f29d671d76d1e95ba3a4eaff5b96.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d11e19c84255eb0431415c2dec553d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a633ce356e31adae2c0f1c4be3bbdfdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baa2f1a925d67fcd406218b83015d13.png)
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2023-12-27更新
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4卷引用:海南省海口市海口中学2024届高三上学期第四次月考数学试题
海南省海口市海口中学2024届高三上学期第四次月考数学试题(已下线)高二上学期数学期末模拟卷(二)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)山西省山西大学附属中学校2024届高三下学期第一次月考数学试题(已下线)模块六 立体几何(测试)
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 |
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2023-12-25更新
|
809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)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】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(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)
6 . 如图,在四棱锥
中,底面四边形
为菱形,
平面
,过
的平面交平面
于
.
平面
;
(2)若平面
平面
,四棱锥
的体积为
,求平面
与平面
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/a8bc5d8308a060d6068cfc9f69fe79e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/519a9076a764e5731ab4c661c5c9bea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b70cef0b79ca64acbb67dc667fc53b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf227a1e3c2f659eb66b91b85e4a947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9da6af3fa0ad84908d77ff84983a24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb8697622fb9d281cf44feb4adaf14a.png)
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2023-12-25更新
|
308次组卷
|
3卷引用:山西省吕梁市孝义市2023-2024学年高二上学期12月月考数学试题
23-24高二上·全国·期末
解题方法
7 . 如图,在三棱柱
中,四边形
为菱形,
,
,
,平面
平面
,Q在线段上移动,P为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2023/12/25/3396729386549248/3396783588081664/STEM/0db9a04b71be464e9730451eabd0f7dc.png?resizew=216)
(1)若Q为线段AC的中点,H为BQ中点,延长AH交BC于D,求证:
平面
;
(2)若二面角
的平面角的余弦值为
,求点P到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f0d0e78101fef36a75b70ac7e7cf5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fba6dc92460fa44832398fd2868940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cdaadeae37736a1e6dd93fa1fe712f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/2023/12/25/3396729386549248/3396783588081664/STEM/0db9a04b71be464e9730451eabd0f7dc.png?resizew=216)
(1)若Q为线段AC的中点,H为BQ中点,延长AH交BC于D,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5edfe97aeab0cf16b40fa9d2e15f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ffba8658b0023316117e1536cbf806.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39eefa58485e43a86a1931a2aa7222a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ec70bc9d4f8f5df312e2f09ee3bcb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fed1f54c1b008a633326db4f20288c5.png)
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名校
解题方法
8 . 设m,n是两条不同的直线,
,
是两个不同的平面,下列命题中正确的是( )
①若
,
,则
②若
,
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808c6d37467a5c995d71e49408503927.png)
③若
,
,
,则
④若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4042f9c51f83e3367d496e851735d7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79018590293277ff2d76452a50ad2dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a93a52c2b943e4c70ace99ed802d2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f747152f006301e03b643afb80195c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808c6d37467a5c995d71e49408503927.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209323a7a4d015f7e570ec578c1731f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4042f9c51f83e3367d496e851735d7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
A.②④ | B.①② | C.②③ | D.③④ |
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2023-12-22更新
|
865次组卷
|
4卷引用:四川省乐山市2024届高三第一次调研考试数学(理)试题
9 . 如图,
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b2531a14239af1cb3a5e3cbae5edffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298cc3d9bc6dc88c494b5489ee2ca846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/20/2c8a359f-1c0d-4a7f-add1-b32e3dd82021.png?resizew=168)
(1)求证:
平面
;
(2)求点
到平面
的距离;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b2531a14239af1cb3a5e3cbae5edffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298cc3d9bc6dc88c494b5489ee2ca846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5edcfffbdd3a28ddf78b3e089238e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411d1139c919736044af6379743b3d5c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/20/2c8a359f-1c0d-4a7f-add1-b32e3dd82021.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d32e76582bf550593fdef53e081225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20af148464904e21f4374cc8fb886fba.png)
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10 . 如图,在四棱锥
中,
,
,点P是以AB为直径的半圆上的一点(不同于A,B两点),平面
平面ABCD,E,F分别为线段AD,PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/24d99452-876e-4535-ad8e-fd0e9f913157.png?resizew=161)
(1)求证:
平面PAB;
(2)当四棱锥
的体积最大时,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899f82187d0591696c36ff4bbf74070d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/24d99452-876e-4535-ad8e-fd0e9f913157.png?resizew=161)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
(2)当四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b0dc4f92cba842f44477bc9811065c.png)
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