已知点A为椭圆
的左顶点,点F为椭圆E的右焦点,过点F作一条直线交椭圆E于M,N两个不同点,连接
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16bb4c70d99c3505005b95c315102cc8.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b779153b1dc23637f0555be533a45f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16bb4c70d99c3505005b95c315102cc8.png)
更新时间:2024-05-12 08:48:06
|
【知识点】 根据直线与椭圆的位置关系求参数或范围
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填空题-单空题
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【推荐2】在直角坐标系
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