题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170246-94687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170246-59359.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170246-94925.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() ![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170247-88179.png)
核心考点
举一反三
已知椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170230-65735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170230-34170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170230-34012.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-32312.png)
点。
(Ⅰ)求椭圆标准方程;
(Ⅱ)设动点P满足:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-90140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-45544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-70555.png)
使得
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-13414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-70555.png)
(Ⅲ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-82350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-64962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-82350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-44990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-62584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170231-43853.png)
交椭圆于点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170232-66964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170232-60148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170221-96261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170221-25304.png)
的焦点,若∠AFB=
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170221-88474.png)
A、
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170222-76881.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170222-67533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170222-44592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170222-47646.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170213-53824.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170208-23375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170208-28611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170208-40338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170155-89848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170155-89848.png)
(I)求曲线C的方程;
(II)已知点M在Y轴上,且过点F的直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170155-77678.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170155-97054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023170155-77678.png)
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