如图,拋物线
与x轴交于A,B两点,与y轴交于点C,点P是抛物线的对称轴上任意一点,若点D、E、F分别是
的中点,连接
、
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1750210b42f74a81ecfac9f40403ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cfa956e8b6f93cdaa8f77818e0e949.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/506bbc434d386f2d8e10607b70c56c18.png)
![](https://img.xkw.com/dksih/QBM/2022/10/26/3096137318211584/3097610769932288/STEM/0b919049e3f1424ab0685328f7295407.png?resizew=242)
更新时间:2022-10-28 20:48:09
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