题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175238-40129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175239-26156.png)
A. 3或![]() | B. 3 | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175240-77006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175240-46950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175240-78951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175240-16794.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175233-44394.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175233-38486.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175226-30714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175226-12213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175226-46384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175226-41467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175226-96644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175226-45210.png)
A.![]() | B.![]() | C.![]() | D.![]() |
已知椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175218-86948.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175218-33299.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-99053.gif)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175218-86948.gif)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-41328.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175218-86948.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-62459.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175218-86948.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-75181.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-50306.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-66907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175219-62459.gif)
椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175203-51065.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-90088.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-40911.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-37843.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-26269.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-26591.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-38117.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175205-44776.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175205-25523.gif)
(Ⅰ)求椭圆C的方程;
(Ⅱ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175205-86108.gif)
(Ⅲ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-37843.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-26269.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175204-26591.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175205-18907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175205-35919.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175205-40631.gif)
椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175145-88292.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175145-87238.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175145-75660.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175145-99405.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-13907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-56760.gif)
于A、B两点,当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-13907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-51429.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-13907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-68430.gif)
⑴求椭圆C的方程;
⑵椭圆C上是否存在点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-57172.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-13907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175145-75660.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175147-92229.gif)
立?若存在,求出所有满足条件的点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023175146-57172.gif)
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