名校
1 . 在正方体
中,
是侧面
上一动点,下列结论正确的是( )
![](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/5ebb05874eb3353d754af24c9974273e.png)
A.三棱锥![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-07-17更新
|
1133次组卷
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5卷引用:四川省宜宾市2022-2023学年高一下学期期末数学试题
四川省宜宾市2022-2023学年高一下学期期末数学试题四川省成都外国语学校2023-2024学年高二上学期9月月考数学试题重庆市第八中学校2023-2024学年高二上学期第一次月考数学试题重庆市渝北中学校2024届高三上学期12月月考数学试题(已下线)第二章 立体几何中的计算 专题一 空间角 微点5 直线与平面所成角综合训练【培优版】
名校
2 . 如图,在四棱锥
中,
,
,
,△MAD为等边三角形,平面
平面ABCD,点N在棱MD上,直线
平面ACN.
.
(2)设二面角
的平面角为
,直线CN与平面ABCD所成的角为
,若
的取值范围是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4117625867a74cd022584500c76deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ee81b6066188abee9d167b6c7f3f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e05d8681a679bd31922e62480f69d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451604e8cbe0706585d9cd2c76db4b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f74c46a80f7540470b5e171e2e17d3bf.png)
(2)设二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698335f4880c7a298f4898c83b6562bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97de9d1a07d32cae0e86d73482477da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
您最近一年使用:0次
2023-06-30更新
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2996次组卷
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8卷引用:四川省2022-2023学年高一下学期“贡嘎杯”期末质量检测考试数学试题
3 . 如图,三棱锥
中,
平面
,
,
为
中点,下列说法中正确的是_________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/ab96a043-4f6b-44cd-b3ef-edbe871cc9cf.png?resizew=162)
①
;
②记二面角
的平面角分别为
;
③记
的面积分别为
;
④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8bd8c13192ca45c16dad5d59b547220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/ab96a043-4f6b-44cd-b3ef-edbe871cc9cf.png?resizew=162)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d929cd2bf2e220f08de492d9f7c172c.png)
②记二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c23154639b674ee528e16ab56922f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d3827d8d9b7545cbcc0b02d054e211.png)
③记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df33594abfd5d3e439e1fa87e5ee38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b410baa0393d60c0932c2bdaf7d2626.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae020a98c61318a8e634d29aa91f0e4.png)
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2021-01-12更新
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976次组卷
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4卷引用:四川省南充高级中学2020-2021学年高二上学期第二次月考数学(理)试题
四川省南充高级中学2020-2021学年高二上学期第二次月考数学(理)试题上海市洋泾中学2022-2023学年高二上学期期中数学试题(已下线)期中真题必刷压轴60题(18个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)(已下线)期中测试卷01(测试范围:第10-11章)-2023-2024学年高二数学单元速记·巧练(沪教版2020必修第三册)
4 . 如图,正方体
中,
是棱
的中点,
是侧面
上的动点,且
平面
,则
与平面
所成角的正切值
构成的集合是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/f1cdada1-bc09-4256-bc1d-e9ccf51f2156.png?resizew=188)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d45c10c00742e89d4123977720c0e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/f1cdada1-bc09-4256-bc1d-e9ccf51f2156.png?resizew=188)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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