解题方法
1 . 如图,在长方体
中,
,
,
,
分别是
,
,
的中点,记直线
与
所成的角为
,平面
与平面
所成二面角为
,则( )
![](https://img.xkw.com/dksih/QBM/2020/6/8/2480278951321600/2480342440247296/STEM/691a5beb3c294a3884c78852e42858de.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9316f312736272694345d9ec5a429f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859317d3532a5cc4ccc8216e3effd91f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc9076974ebd6331d67055302be8167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce67302a7f18c69d71b65db2aa273120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4922260a94796e6375b5bf0cbe2523c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9d6af906f8595758f5fd978b65b20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679748eab882a6be0fefd2cc300349a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/2020/6/8/2480278951321600/2480342440247296/STEM/691a5beb3c294a3884c78852e42858de.png?resizew=170)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-10-02更新
|
760次组卷
|
4卷引用:2020年浙江省名校高考预测冲刺卷(一)
2020年浙江省名校高考预测冲刺卷(一)2018年浙江省名师原创预测卷(二)(已下线)【新教材精创】1.2.4+二面角(2)A基础练-人教B版高中数学选择性必修第一册(已下线)专题8-4 立体几何中求角度、距离类型-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)