1 . 如图,四棱柱
中,底面
是边长为
的正方形,侧棱
长为4,且
与
,
的夹角都是
,则
的长等于.
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572466994380800/1572467000057856/STEM/1a50533400df4d5393fb2673cbf1b791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd13519309b02796e8d03fde0d8eb84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdccc23f0f0f511a29ebae43d194f5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572466994380800/1572467000057856/STEM/1a50533400df4d5393fb2673cbf1b791.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
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3卷引用:2015-2016学年四川省雅安市天全中学高二11月月考理科数学试卷