1 . 已知a,b,c为三条不同的直线,
,
,
为三个不同的平面,则下列说法错误的是( )
![](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/9f435efcc7869eec21bdba1ed81dc3f5.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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3卷引用:黑龙江省哈尔滨师范大学附属中学2022-2023学年高三上学期11月月考数学试题
名校
解题方法
2 . 已知直线
和平面
,且
在
上,
不在
上,则下列判断错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.若![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若存在无数条直线![]() ![]() ![]() ![]() ![]() |
D.若存在无数条直线![]() ![]() ![]() |
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5卷引用:上海市长宁区2021-2022学年高二上学期期末数学试题
上海市长宁区2021-2022学年高二上学期期末数学试题(已下线)易错点11 立体几何(已下线)上海期末数学练习(已下线)第28讲 空间直线、平面的垂直2种题型(1)上海市大同中学2023-2024学年高二上学期10月月考数学试题
解题方法
3 . 如图,在多面体
中,已知
,
,
,平面
平面
,四边形
是正方形.
![](https://img.xkw.com/dksih/QBM/2022/11/17/3111590721298432/3112302315495424/STEM/1782cf070c5e4ae98c54ec2ba7b0d85e.png?resizew=185)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657d5471e57b894c3833bb3f43ff38ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a1ce226f636a38dcb980164d69e46a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a41e1be0d39b6666edcf4f2d5fe7729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653ddc9c58281c1cc096de7c15ed0749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bc51695e51aa8cd2f97d220c8f5340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bc51695e51aa8cd2f97d220c8f5340.png)
![](https://img.xkw.com/dksih/QBM/2022/11/17/3111590721298432/3112302315495424/STEM/1782cf070c5e4ae98c54ec2ba7b0d85e.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735f54742d82c3d9340220466e77ccae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bc51695e51aa8cd2f97d220c8f5340.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719103f93166bab4828257608e641a9a.png)
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名校
解题方法
4 . 如图,正三棱柱
中,
分别是棱
,
上的点,
平面
,且M是AB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/5cf17122-cce0-48ff-80cc-bcb365818b82.png?resizew=160)
(1)证明:平面
平面
;
(2)若
,求平面BEF与平面BCE夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b96dce1ec94eb90c243b2eddb78476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa14afe6f0aad22e8e869c39a60be657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/5cf17122-cce0-48ff-80cc-bcb365818b82.png?resizew=160)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51838e395dfc9d9ef597d9e01f46272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2ab6940dca62be1f3b2b5f8531990.png)
您最近一年使用:0次
2022-11-14更新
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699次组卷
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3卷引用:重庆市缙云教育联盟2023届高三上学期11月月度质量检测数学试题
解题方法
5 . 在棱长为1的正方体
中,
是棱
的中点,
是侧面
内的动点,且满足直线
∥平面
,当直线
与平面
所成角最小时,记过点
的平面截正方体
所得到的截面为
,则截面
的周长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a604466a9c8d10d557b3dfc43b547065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912d03b664bbf5896427da55c5d4e0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a604466a9c8d10d557b3dfc43b547065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bbe13f5c674ba211bc31948cc91151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
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6 . 如图,E、F、G、H分别为空间四边形ABCD的边AB、BC、CD、DA上的点,且AC=6,BD=4,则当
=_____ 时,四边形EFGH为菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd4af2c49cfde809f4bdae31f946a4a.png)
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2022-11-12更新
|
521次组卷
|
7卷引用:高二数学上学期【第一次月考卷】(测试范围:第10~11章)-2022-2023学年高二数学考试满分全攻略(沪教版2020必修第一册)
(已下线)高二数学上学期【第一次月考卷】(测试范围:第10~11章)-2022-2023学年高二数学考试满分全攻略(沪教版2020必修第一册)上海市市北中学2021-2022学年高二上学期10月月考数学试题(已下线)8.5.1-8.5.2直线与直线平行、直线与平面平行(已下线)8.5.2直线与平面平行(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)6.4.1直线和平面平行(课件+练习)(已下线)核心考点07空间直线、平面的平行-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)(已下线)专题3.5空间直线、平面的平行-重难点突破及混淆易错规避(人教A版2019必修第二册)
18-19高一·全国·单元测试
7 . 对于平面
和共面的直线m、n,下列命题中真命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若m、n与![]() ![]() |
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7卷引用:四川省内江市威远县威远中学校2022-2023学年高二上学期期中数学(理)试题
名校
解题方法
8 . 如图,已知棱长为1的正方体
中,
分别是线段
的中点,又
分别在线段
上,且
.设平面
平面
,现有下列结论:①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
平面
;②
;③直线
与平面
垂直;④当
变化时,
是定直线.其中成立的结论是__________ .(写出所有成立结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b094411c562930ff2d67b582cfd48cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af55b84645a6a98e36ad57c96938af8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615905b97e7a125cbd3ec958d1bf9540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30429369ae965552de457acbc1b13285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f0a3bdee1a569e591b2f80dbfbc65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7702c7496ef872e898eef3c7ce29a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95e692badf11ca5ac25104a166f4467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2022/11/10/3106567319871488/3107342175633408/STEM/1ec500042bbd4e0285c31ccadc0cd8b4.png?resizew=196)
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2022-11-11更新
|
262次组卷
|
3卷引用:上海市大同中学2022-2023学年高二上学期期中数学试题
9 . 在如图所示的几何体
中,
与
为全等的等腰直角三角形,
,四边形
为正方形,且
,
.已知平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/0af59e09-30a9-45dd-9c39-158ab19adf4c.png?resizew=160)
(1)求证:
;
(2)已知
,
为
上一点,求直线
与平面
所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d8f2afc63afc94c447ed229f33450d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff744f47e5a15e26ab5e0c5c3f0aeda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e793c52fdd16cc602eaf753964ec02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6033e34525a01165a587dadd87309ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02864602e30b261c2de2fffb52193a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d188950c55432a52dff2300fc4a5c55e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ab042ec9c046f7aa4242b765cbb081.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/0af59e09-30a9-45dd-9c39-158ab19adf4c.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eea840f9b0f17a463fec1b7319025f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb5255e2159617505e0c87d01437a57.png)
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10 . 下列命题正确的是( )
A.一条直线和一个平面平行,则它和这个平面内的任何直线平行. |
B.如果一条直线垂直于平面内无数条直线,那么这条直线和这个平面垂直. |
C.垂直于三角形两边的直线必垂直于第三边. |
D.两条直线与一个平面成角相等,则这两条直线平行. |
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