若椭圆的标准方程为
,焦点在
轴上,且焦距是
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c7e7449010436e00dce3b6924a4258.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c78cb34aa0157d13fa6cdbc6d7d00e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c7e7449010436e00dce3b6924a4258.png)
更新时间:2020-03-25 20:27:32
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【知识点】 求椭圆的焦点、焦距