名校
解题方法
1 . 设椭圆
的左、右焦点分别为
,
,P是椭圆上一点,
,
,则椭圆的离心率的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124b231bf2cd3746f35e6c68cd7178f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270293c264f41c40c25f90121c7d797e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-01-21更新
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771次组卷
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2卷引用:浙江省嘉兴市海盐高级中学2021-2022学年高二下学期返校测试数学试题