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已知F1、F2是椭圆的两个焦点,满足•=0的点M总在椭圆内部,则椭圆离心率的取值...
已知F
1、F
2是椭圆的两个焦点,满足
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•
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101222915587655973/SYS201311012229155876559010_ST/1.png)
=0的点M总在椭圆内部,则椭圆离心率的取值范围是( )
A.(0,1)
B.(0,
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]
C.(0,
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)
D.[
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,1)
考点分析:
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