1 . 已知
为抛物线
的焦点,
为
上一点,
,则
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ac6188f40414f76bc754dee4a75809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96654ec459e18769914c8a702137140a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acea2e2ac2b1786d527f5ee0570d0c83.png)
您最近一年使用:0次
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2 . 抛物线
的焦点为
,点
为抛物线上一点,且
不在直线
上,则
周长的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270b317c77b8f96e8f3ae4023eaf0329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77613db85ffeb465c581955c4b2885ea.png)
您最近一年使用:0次
2018-03-29更新
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1755次组卷
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7卷引用:【全国百强校】江西省新余市第一中学2019届高三第一次模拟考试数学(文)试题