题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144057-84251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144057-37761.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144057-41247.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144057-78074.png)
解析
试题分析:先利用双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144057-84251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144057-37761.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144036-37638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144036-59495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144036-38975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-98847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-98847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144036-37638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-42092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-16755.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-14703.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144036-37638.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-48517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144037-15078.png)
(3)求
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144038-28972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144029-83656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144030-40849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144030-34916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144030-81591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144030-86456.png)
A.点![]() ![]() | B.点![]() ![]() |
C.点![]() ![]() | D.以上三种均有可能 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144020-78555.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144020-52859.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144020-32214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144020-88223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144003-74807.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144003-12475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-11983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-97864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144003-12475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-49472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-11983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-54996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-65356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144003-74807.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-51308.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-85253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-11983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144005-69347.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-11983.png)
(2)过椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-11983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144005-60006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144005-94141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144004-11983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144005-48601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144005-14819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144006-15458.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144006-99426.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023144006-57650.png)
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