解答题-问答题 较难0.4 引用2 组卷562
已知椭圆
的左右焦点
,其离心率为
,点
为椭圆上的一个动点,
内切圆面积的最大值为
.
(1)求
的值;
(2)若
是椭圆上不重合的四个点,且满足
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/4e74c571dc3c44e580496bd5a0e23010.png)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/944f17d02d6b404794b3ebe448092b56.png)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/ec55aaba8c3546cda6da48c5facf998c.png)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/f2ce371f7eca41a99d29e7e575a58bd4.png)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/0662038cbc4640db980c4bbe702deac4.png)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/72849ed9fb4149fe8d795f579ab6bf5c.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/39dd07d4f132407d8fe77dc4f145c9fb.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572426830594048/1572426836803584/STEM/0b45b247aa754e98b8524fee6625c957.png)
2016·河北邯郸·一模
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