已知椭圆
的左、右顶点分别为A,B,M是椭圆E上一点,M关于x轴的对称点为N,且
.
(1)求椭圆E的离心率;
(2)若椭圆E的一个焦点与抛物线
的焦点重合,斜率为1的直线l与E相交于P,Q两点,在y轴上存在点R,使得以线段
为直径的圆经过点R,且
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24302e037f380a35020b131bdb7ec9f7.png)
(1)求椭圆E的离心率;
(2)若椭圆E的一个焦点与抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4856428c4f87eada4e504fce8cc91d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf2e0e8f712f95faf8242899272e2268.png)
更新时间:2021-03-22 16:29:15
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【推荐3】(1)求椭圆
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