已知点
在抛物线
上,则当点
到点
的距离与点
到此抛物线焦点的距离之和取得最小值时,点
的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60051144e33707f6aa51b2fe09925268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205df88e14c0c849612682fb44dda19d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60051144e33707f6aa51b2fe09925268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ff37973de8f492d3476cdfd606290a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60051144e33707f6aa51b2fe09925268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60051144e33707f6aa51b2fe09925268.png)
A.(![]() | B.(![]() | C.(![]() | D.(![]() |
更新时间:2019-02-15 16:26:36
|
【知识点】 抛物线上的点到定点的距离及最值
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单选题
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适中
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【推荐1】已知点
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A.10 | B.4 | C.![]() | D.![]() |
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单选题
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适中
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名校
【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c079afd1b058adc67a50f48f3d466.png)
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