题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025232-23216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025233-84599.png)
A.![]() | B.![]() | C.2 | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025234-81737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025233-99701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025234-96280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025233-99701.png)
核心考点
试题【F1,F2是双曲线C:=1(a>0,b>0)的两个焦点,过左焦点F1的直线l与双曲线C的左、右两支分别交于A,B两点.若|AB|∶|BF2|∶|AF】;主要考察你对双曲线的定义与方程等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025226-82362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025226-23636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025226-43800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025226-84217.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025217-34486.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025217-41887.png)
A.![]() | B.4 | C.16 | D.81 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025207-56677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025207-95389.png)
(1)求双曲线方程;
(2)已知直线x-y+m=0与双曲线C交于不同的两点A、B,且线段AB的中点在圆
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025207-12322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025203-85342.png)
A.|OA|>|OB| | B.|OA|<|OB| |
C.|OA|=|OB| | D.|OA|与|OB|大小关系不确定 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025156-12222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025157-34268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025157-62816.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024025157-13597.png)
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