如图,在矩形
中,
,点E是
的中点,连接
,以点
为原点,建立平面直角坐标系,点M是
上一动点,取
的中点为N,连接
,则
的最小值是________ .(提示:两点间距离公式
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24db1523a28f5ba5c472645c3cf15c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5013b56503dc94638cd2c38ac5e32d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/bdb458cf-d256-479d-9013-e01e214c2c51.png?resizew=248)
更新时间:2022-02-10 08:43:14
|
【知识点】 y=ax²+bx+c的最值解读
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