如图,正方形
是圆柱的轴截面,点
在底面圆周上,且是
的中点.则直线
与
所成角的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/542713c8-2cbb-4d6a-9ed8-c9f640df08d4.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/542713c8-2cbb-4d6a-9ed8-c9f640df08d4.png?resizew=153)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-11-26 22:58:05
|
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A.![]() | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
单选题
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解题方法
【推荐2】已知双曲线
:
的左、右焦点分别为
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为双曲线
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平分
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的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124b231bf2cd3746f35e6c68cd7178f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐1】在正四面体
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A.![]() |
B.![]() ![]() |
C.异面直线![]() ![]() |
D.![]() |
您最近一年使用:0次
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【推荐2】如图,在正方体
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您最近一年使用:0次