已知椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的左焦点为
,过
作一条倾斜角为
的直线与椭圆
交于
,
两点,若
为线段
的中点,则椭圆
的离心率是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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21-22高三上·河南·阶段练习 查看更多[6]
河南省联考2021-2022学年高三上学期核心模拟卷(上)文科数学试题(二)浙江省宁波市北仑中学2021-2022学年高二上学期期中数学试题青海省西宁市大通回族土族自治县2022届高三第一次模拟考试数学(文科)试题山西省运城市景胜中学2021-2022学年高二下学期5月月考数学试题(已下线)第12讲 平面解析几何 章节总结 (精讲)-3(已下线)考向35 离心率的多种妙解方式(十四大经典题型)-3
更新时间:2021-10-15 09:42:35
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【推荐1】已知椭圆和双曲线有共同的焦点
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【推荐2】已知
,
是椭圆
的左、右焦点,
为椭圆上一点,
,
的外接圆半径是内切圆半径的4倍.若该椭圆的离心率为
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【推荐2】过点
作斜率为
的直线与椭圆
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、
两个不同点,若
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