如图,在
中,
为
的中点,
为
上任一点,
且
,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3175baa49394a54b46bda191a7f88a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c227da7ad9d24ae3e3740febf9f293.png)
![](https://img.xkw.com/dksih/QBM/2015/6/10/1572121469919232/1572121475727360/STEM/071b3e44d23c4ae286426e2e034edefe.png?resizew=144)
更新时间:2016-12-03 13:52:14
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【知识点】 向量在几何中的应用
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【推荐2】.
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