解题方法
1 . 已知点
在椭圆
上,
为椭圆的右焦点,直线
与圆
相切,且
(
为原点),则椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7edca3a46fb496287af5d25a77fa79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea30bcfab76d7ec3888ca1394628d18e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2023-02-14更新
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3卷引用:河北省高碑店市崇德实验中学2023-2024学年高二上学期10月月考数学试题