已知矩形
,
,
,点 E 为
边的中点,点 F 为
边上的动点,点 B 和点
关于
对称,则
的最小值是______ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0582b5a320d08ee7c1329d57d4db3bab.png)
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更新时间:2021-05-08 12:52:59
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【推荐1】1.如图在平面直角坐标系中,
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