题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-49110.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-70252.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-92108.png)
解析
试题分析:因为双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-49110.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-70252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-24168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033006-99737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033006-34829.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033005-92108.png)
点评:将双曲线标准方程中的1换成0,解出的直线方程即为双曲线的渐近线方程,这种求渐近线的方法要掌握并灵活应用.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033000-30603.png)
A.2 | B.3 | C.4 | D.6 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032954-56641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032950-91835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032950-93448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032950-67900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032950-19191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032951-82890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032950-19191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032951-84009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032945-18433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032945-67129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032945-62875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032940-98751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032940-25587.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032940-75333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032941-18964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032941-78503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032940-75333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032941-78503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024032941-18964.png)
A.17 | B.22 | C.7或17 | D.2或22 |
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