名校
1 . 如图,在
中,
分别为边
上一点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b5812093afe3b23e199fd112faba96.png)
,将
沿
折起到
的位置,使得
为
上一点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/8e520939-058b-44c4-9c34-025e6450188a.png?resizew=257)
(1)求证:
平面
;
(2)若
为线段
上一点(异于端点),且二面角
的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4759a4362006aa8d6432bc974c8ad6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5881068127a39caf319492b4177204f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b5812093afe3b23e199fd112faba96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a4aea4de9a527ee8509c7dc69ec99d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d84f8c9ef2f139809835920f5a5e3da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455bdd0ae0b606a2b22427b5a311803c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/8e520939-058b-44c4-9c34-025e6450188a.png?resizew=257)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36222db36e348661eb5f616820e4e60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9881d842baa10bd2f1ca9e50d0877451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74fe624c03051fc4a81383888de774bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019c01a933a1844d9a7909e7bcf1b103.png)
您最近一年使用:0次
2 . 已知
,
是两个不同的平面,
为平面
内的一条直线,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.若![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2023-07-01更新
|
560次组卷
|
5卷引用:河南省2024届高三上学期起点考试数学试题
河南省2024届高三上学期起点考试数学试题(已下线)湖北省新高考联考协作体2022-2023学年高一下学期期末联考数学试题湖北省孝感市重点高中2022-2023学年高一下学期期末联考数学试题安徽省定远中学2022-2023学年高一下学期6月阶段检测数学试卷(三)(已下线)专题04空间点、直线、平面的位置关系与空间直线、平面的平行-期末真题分类汇编(新高考专用)
解题方法
3 . 在如图所示的六面体
中,平面
平面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/21f61f9a-b783-4036-bbd0-2caf6b6858b5.png?resizew=212)
(1)求证:
平面
;
(2)若AC,BC,
两两互相垂直,
,
,求点A到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35be3e32756bfd27e75963842b041f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617edf7f259f5955db7cad814af85281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c1faecb71c7a75462fd1bbb8874b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae757459584fea8509a845e0348d42a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7579755d7d17bd72d97b03df323aefa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a77424eb4fdca8e61b484eb5b4db5b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/21f61f9a-b783-4036-bbd0-2caf6b6858b5.png?resizew=212)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b845b876f07c6578e80847cb3786f5c.png)
(2)若AC,BC,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96872cd6cd581ae8a861c7032e0257b4.png)
您最近一年使用:0次
2023-02-10更新
|
634次组卷
|
4卷引用:河南省濮阳市2022-2023学年高三下学期第一次摸底考试文科数学试题
4 . 在如图所示的六面体
中,平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
平面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/fa50a259-113b-4013-badb-8ed2c77ab0dc.png?resizew=158)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
平面
;
(2)若
两两互相垂直,
,
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c1faecb71c7a75462fd1bbb8874b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ed5912cb0f3178026773b26f622e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7579755d7d17bd72d97b03df323aefa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a77424eb4fdca8e61b484eb5b4db5b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/fa50a259-113b-4013-badb-8ed2c77ab0dc.png?resizew=158)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b845b876f07c6578e80847cb3786f5c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b60e4645a9f374f340f4facf31b56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee73776c3c02f306e8c25b9d13def1b.png)
您最近一年使用:0次
2023-02-09更新
|
265次组卷
|
2卷引用:河南省濮阳市2022-2023学年高三下学期第一次摸底考试理科数学试题
名校
解题方法
5 . 如图,在底面
是菱形的直四棱柱
中,
,
,
,E、F、G、H、N分别是棱
、
、
、
、
的中点,点P在四边形
内部(包含边界)运动.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/740c4691-0bbd-49ad-b9bb-5220f959f56a.png?resizew=196)
(1)现有如下三个条件:条件①
;条件②
;条件③
.
请从上述三个条件中选择一个条件,能使
平面
成立,并写出证明过程;(注:多次选择分别证明,只按第一次选择计分)
(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/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf80b036459da6dcb841a4bbe3859fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7e8dd831f4edc711c0f7d5f078f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/740c4691-0bbd-49ad-b9bb-5220f959f56a.png?resizew=196)
(1)现有如下三个条件:条件①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90003c3dc53cb288fe7a5a5b4c6fae53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6590ea4a162a5c2048e4712a857b60ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bde64ab14badbd94fda2c828ad567f0.png)
请从上述三个条件中选择一个条件,能使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc674d2604ff270dd6abc66b35e86e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4cd2b33bd983a9ed6575b9de04a46a.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28ffb91592a1a09581a228a601cde52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
您最近一年使用:0次
2022-10-28更新
|
315次组卷
|
2卷引用:河南省实验中学2023-2024学年高三上学期开学考试数学(理)试题
6 . 在三棱锥
中,
,
,
,
分别为
,
,
的中点,
为
的中点,若
且
,则下列结论中不一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c383691e8d740830a865b12d66f7633.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827beb23a9fe02a8b588645bcb82ce67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/873881be2da23ad3840d32f73898d039.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2022-09-08更新
|
305次组卷
|
4卷引用:河南省焦作市2022-2023学年高三上学期定位考试理科数学试题
7 . 在正方体
中,P,Q分别为AB,CD的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() | B.平面![]() ![]() |
C.![]() ![]() | D.平面![]() ![]() |
您最近一年使用:0次
2022-09-08更新
|
447次组卷
|
4卷引用:河南省六市TOP二十名校2022-2023学年高三上学期9月摸底考试理科数学试题
名校
解题方法
8 . 如图,平面PAC⊥平面ABC,△ABC是以AC为斜边的等腰直角三角形,E,F,O分别为PA,PB,AC的中点,AC=16,PA=PC=10.
![](https://img.xkw.com/dksih/QBM/2022/8/24/3051571337510912/3055085545439232/STEM/2ad0a32b51fa41e79f87db33b07462a2.png?resizew=209)
(1)设G是OC的中点,证明:FG
平面BOE;
(2)在△ABO内是否存在一点M,使FM⊥平面BOE,若存在,请找出点M,并求FM的长;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2022/8/24/3051571337510912/3055085545439232/STEM/2ad0a32b51fa41e79f87db33b07462a2.png?resizew=209)
(1)设G是OC的中点,证明:FG
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
(2)在△ABO内是否存在一点M,使FM⊥平面BOE,若存在,请找出点M,并求FM的长;若不存在,请说明理由.
您最近一年使用:0次
名校
9 . 如图,AB 是圆O的直径,点C是圆O上异于A,B的点,直线PC⊥平面ABC,E,F分别是PA,PC的中点.
![](https://img.xkw.com/dksih/QBM/2022/8/24/3051571265699840/3053387929706496/STEM/b65bfdea7b034667b9a46ccdf6098ea0.png?resizew=207)
(1)记平面BEF与平面ABC的交线为l,求证:直线l//平面PAC;
(2)若PC=AB=2,点C是
的中点,求二面角E-l-C的正弦值.
![](https://img.xkw.com/dksih/QBM/2022/8/24/3051571265699840/3053387929706496/STEM/b65bfdea7b034667b9a46ccdf6098ea0.png?resizew=207)
(1)记平面BEF与平面ABC的交线为l,求证:直线l//平面PAC;
(2)若PC=AB=2,点C是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
您最近一年使用:0次
2022-08-27更新
|
439次组卷
|
2卷引用:河南省信阳高级中学2022-2023学年高三上学期开学考试数学(理)试题
解题方法
10 . 如图,在四棱锥
中,
//
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/8/10/3041450655858688/3044239098896384/STEM/29945af3c01745229e29211c1071fb8c.png?resizew=205)
(1)若E为PB的中点,证明:
//平面
.
(2)若二面角
为
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70e550fa3c5aaf1b9c28f36fd5ed5d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabe9c609ca88802157ea9438980489e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://img.xkw.com/dksih/QBM/2022/8/10/3041450655858688/3044239098896384/STEM/29945af3c01745229e29211c1071fb8c.png?resizew=205)
(1)若E为PB的中点,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c911b404bbb8f8d5f1470585fa31ad97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a12c461765806bbfb872e7e8aa410c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
您最近一年使用:0次