解题方法
1 . 椭圆
的长轴长为________ ;离心率为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d3fe3550f7b5a5f5f4d79dc67f674a.png)
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名校
2 . 已知椭圆
的一个焦点与抛物线
的焦点重合,则该椭圆的离心率是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0f80097729ffbd359df01f3aacc461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
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2014高三·全国·专题练习
名校
解题方法
3 . 椭圆
(![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1003dc3cafbe24c093399d1a3f619d84.png)
)的左、右焦点分别是
,过
作倾斜角为
的直线与椭圆的一个交点为
,若
垂直于
,则椭圆的离心率为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1003dc3cafbe24c093399d1a3f619d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ba80be450e578bef55b932232e884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
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2016-12-03更新
|
1257次组卷
|
5卷引用:2014-2015学年海南省海南中学高二上学期期末考试理科数学试卷