已知椭圆
的右焦点为
,其关于直线
的对称点
在椭圆上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d977a0d5b91fb041367d385183f89a29.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d4f20f4d98141613ff5dd7c37b55c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d977a0d5b91fb041367d385183f89a29.png)
更新时间:2020-01-02 07:08:37
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【推荐1】已知点P(k,1),椭圆
=1,点P在椭圆外,则实数k的取值范围为_____ .
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【推荐2】若椭圆
和椭圆
的离心率相同,且
,给出如下四个结论:
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一定没有公共点;
②
;
③
;
④
.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8210484dd6815b5bebc7b22f1389cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a258893e87121fc82b385e9a0c149ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ade3a1d01605706801e238726e55fb.png)
①椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd731967bb86ddf18e9e473daa96041a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4136a0765b41ebaa5ae5d080372b1632.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677b1ff93f4faaed1e5eccbff7044079.png)
则所有结论正确的序号是
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【推荐2】设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
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