题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-20097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-96522.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-29805.png)
答案
解析
由双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-20097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-56520.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-70364.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042151-82421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042151-66763.png)
又渐近线方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042150-96522.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042151-91063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042151-37767.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042152-48057.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042152-48057.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042146-73982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042141-22831.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042141-32620.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042141-12671.png)
③
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042141-63612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042142-19031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042142-73773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042142-66630.png)
A.![]() | B.![]() | C.![]() | D.2 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042130-57563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042130-85568.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042131-94992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042131-23456.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042131-36612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042131-69677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042126-99516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042126-82843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024042126-82843.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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