若平面外一条直线a不平行于平面
,则下列结论成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.平面![]() | B.平面![]() |
C.平面![]() | D.平面![]() |
24-25高一上·全国·课后作业 查看更多[1]
(已下线)习题 6-4
更新时间:2024-05-26 20:20:03
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单选题
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适中
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【推荐1】已知m,n为两条直线,
为两个平面,下列命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
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【推荐2】设
为两个不同平面,
为两条不同的直线,下列命题是假命题的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() ![]() |
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【推荐1】如图,在四棱锥
中,底面
为正方形,且
,其中
,
,
分别是
,
,
的中点,动点
在线段
上运动时,下列四个结论:①
;②
;③
面
;④
面
,
其中恒成立的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/62ac9991-6930-44e4-8fb6-41e5af5e66f0.png?resizew=233)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26524ae4755f7156a3c62c0548bc524f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc8ccede05f9270d0f04a9545636790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1aba56e04a373cefa813b31a3d99f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3834a4bb20d2b065695dbf53091b065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5000fea066102e62cf2128ccbbd2b3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4862958e60c245dc9a5d9cb57d31eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc6f6dfdbe7d39891c35f67e1a95c7f.png)
其中恒成立的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/62ac9991-6930-44e4-8fb6-41e5af5e66f0.png?resizew=233)
A.①③ | B.③④ | C.①④ | D.②③ |
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解题方法
【推荐2】如图,在正方体
中,
是棱
上的动点.下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/6aa5fc15-e177-409f-92fc-ab6a22205d9a.png?resizew=162)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/6aa5fc15-e177-409f-92fc-ab6a22205d9a.png?resizew=162)
A.对任意动点![]() ![]() ![]() |
B.对任意动点![]() ![]() ![]() |
C.当点![]() ![]() ![]() ![]() ![]() |
D.当点![]() ![]() ![]() ![]() |
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【推荐1】已知平面
,
,
和直线
,则“
”的充分不必要条件是( )
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de666db0febae223cc4d1dc189d71ca6.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
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【推荐2】设
、
为空间中两条直线,
、
为空间中两个不同平面,下列命题中正确的个数为( )
①二面角的范围是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f897eed68eaf69608ffa4cf9de94a8.png)
②若
,
,设
,
,
;
,则
为
的必要不充分条件
③若
、
为两条异面直线,且
,
,
,
,则
.
④经过
个点有且只有一个平面.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①二面角的范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f897eed68eaf69608ffa4cf9de94a8.png)
②若
![](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/c53547de49fd86146e226f08437f5f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53cd751c44ad4d9ebd8e3243e751321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80645381feb9746cc149da61d553974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b895a73b7d4827ec9b2e8705308ccaba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
④经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】若l,m表示两条不同的直线,
表示平面,则下列结论正确的是( )
![](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
单选题
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适中
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【推荐2】设
是一条直线,
,
是两个不同的平面,则下列命题中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
您最近一年使用:0次