椭圆C:
(a>b>0)的焦距为2c,O为坐标原点,A为椭圆的右顶点,以OA为直径的圆与圆
交于P,Q两点,若|PQ|=|OA|,则椭圆C的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26edd7d076460e7aa7e8f319cb2be370.png)
更新时间:2022-07-05 11:05:14
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【推荐2】已知圆
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