在长方体
中,
,
,
,则
与平面
所成角的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3e58edd1f900ca82bb2a3058293f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() | B.2 | C.![]() | D.![]() |
2023·宁夏银川·二模 查看更多[6]
宁夏银川一中、昆明一中2023届高三联合二模考试数学(文)试题第六章 立体几何初步(单元综合检测卷)-【超级课堂】江苏省常州高级中学2022-2023学年高一下学期5月阶段质量检查数学试题(已下线)艺体生一轮复习 第七章 立体几何 第34讲 空间中的垂直关系【练】(已下线)第八章 立体几何初步(二)(知识归纳+题型突破)(2)-单元速记·巧练(人教A版2019必修第二册)(已下线)专题突破:线线角、线面角、二面角的几何求法盘点-同步题型分类归纳讲与练(人教A版2019必修第二册)
更新时间:2023-05-16 13:07:28
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【知识点】 求线面角
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【推荐1】如图,在正方体
中,点
是线段
上任意一点,则
与平面
所成角的正弦值不可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
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A.![]() | B.![]() | C.![]() | D.1 |
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单选题
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较易
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【推荐2】正方体
,
,定点
在线段
上,满足
,动点
在平面
内运动(
正方形
内,不含边界),且
,点
在线段
上,满足:
,设
与平面
所成线面角为
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80e17fdeb89d33158f54c3a2a0d4879.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653c7e2b9f64640ee9c726b83168af38.png)
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