若椭圆
上一点
到一个焦点的距离为
,则点
到另一个焦点的距离为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99703424a01c592cbc4880c8ec178d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
更新时间:2023-01-11 23:31:39
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【知识点】 椭圆上点到焦点的距离及最值
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【推荐1】椭圆
的焦点为
,点
在椭圆上.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e203545563ef6c33968cd9fab532638e.png)
____________ .(用数字填写)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff86e85e4d467091f2fa73018e23a1ee.png)
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【推荐2】设
是椭圆
上的点,
到该椭圆左焦点的距离为
,则
到右焦点的距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b747db7eaf469c6d1607e4b0d028299f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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