在正三棱柱
中,已知
在棱
上,且
,若
与平面
所成的角为
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03889ed36ab093a603f618efa3c956c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b80751c98f9991b9cfc03923a98834.png)
11-12高二上·江西宜春·阶段练习 查看更多[4]
(已下线)2011-2012年江西省上高二中高二上学期第二次月考理科数学(已下线)2011-2012学年江西省上高二中高二上学期第二次月考理科数学试卷四川省乐山市2019-2020学年高二上学期期末数学(文)试题浙江省湖州市2020-2021学年高一下学期期末数学试题
更新时间:2019-01-30 18:14:09
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【知识点】 求线面角
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】如图,在几何体中,
,
,
,
,
,
平面
,则直线
与平面
所成角的正弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4794f2d40733122dbf35a7dd6cf96131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9549a0547b4e5c96edaa26b0a59c6e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed619e2dc900c52a29012e5b821451bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c345e66a23140aa719e2dc563d3ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/b2610760-a01a-4c9c-a9c6-7e2aabb9e877.png?resizew=170)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐2】如果平面
,直线
,点
满足:
,且直线
与
所成的角为
直线
与直线
所成的角为
,那么
与
所成角的大小为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbc7a5bc8875516a16df300331c90b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0089e915cd18dec05d395f9abcdbf1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1835b47caf82d119382066e128e82bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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