题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034824-24816.png)
A.2 | B.2![]() | C.4 | D.4![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034824-86125.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034818-29591.png)
A.2x±y=0 | B.x±2y=0 |
C.4x±y=0 | D.x±4y=0 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034815-36858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034812-70740.png)
已知点
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034756-61746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034756-73495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034756-61601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034756-17183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034756-17183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034757-17970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034757-65004.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034757-37189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034757-77658.png)
(1)求双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-57184.png)
(2)过圆
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034757-37189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-48456.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-11851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-57184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-41284.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-17697.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034757-17970.png)
求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034759-15061.png)
(3)过双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034758-57184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034759-42819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034759-99171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034759-60872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034800-55796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034751-58106.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024034752-90925.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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