如图,在正方体
中,直线
与面
所成角的正切值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b677c724bb0e61b8dd26ac6acf367eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f84d1ed2ff6f93bf229c738c58c15c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/2243a177-6b56-4a96-9b4d-5ab50da2e3ba.png?resizew=171)
22-23高二上·四川遂宁·阶段练习 查看更多[3]
四川省遂宁市射洪中学校2022-2023学年高二上学期第一次学月考试数学(文科)试题四川省峨眉文旅综合高中学校2022-2023学年高二上学期第二次月考数学试题(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(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)
更新时间:2022-10-23 10:34:08
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【知识点】 求线面角
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解题方法
【推荐1】如图,长方体
,
,
,
,
是棱
上的一个动点,若点
运动到棱
靠近
的一个三等分点时,恰有
,求此时
与平面
所成的角__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a917679565479c3ca730d65f3d93f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c06391aff9f5e90e453d02da29a058b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad3a1ea6790177130e16c2124984087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/15/2f91238c-7964-483a-aecc-d66ffd032941.png?resizew=179)
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填空题-单空题
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较易
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【推荐2】已知在长方体
中,
,
,
,E是侧棱
的中点,则直线AE与平面
所成角的正弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd694ad3a4733c7c84aaa7946aeea4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9fa8832f98b5418a7d75892f7951b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f976007b8d754ac3bf5793ed2fce37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2555ddf0e1c249150fd1873e75d1420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094e639c2b31dc54b1b3e6456e77843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced56e151571d1c8838dd35d90a77a5b.png)
您最近一年使用:0次