对中国文人来说,折扇既是一种身份的象征,又寄寓着个人的文化趣味.折扇开合自如,开之则用,合之则藏,进退自如,逍遥自在,如下左图.其平面图如下右图的扇形AOB,其中
,
,点
在弧
上,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee62654200e965a658b352854603ef44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53aec2ef0bbe7a2d482aa35b9826ec6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/735d8938-39ec-4cc4-9b22-015babfac31d.jpg?resizew=189)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/22103870-ec17-4516-bef0-d92b2df16144.png?resizew=181)
A.![]() | B.![]() | C.1 | D.3 |
更新时间:2023-07-26 01:31:30
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