题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222224-66101.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222224-55885.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222225-24905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222224-66101.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222225-91557.png)
解析
试题分析:由题可知
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222225-82707.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222225-27718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222226-20003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222226-27239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222224-66101.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222225-24905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222226-27239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222226-58875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222226-39160.png)
故圆的方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222225-91557.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222221-45853.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222221-33218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222221-70041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222217-72216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222218-25022.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222218-72387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222159-75273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222159-41193.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222159-37071.png)
(1)若圆C与直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222159-91564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222200-80708.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222200-36967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222200-77139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222200-15443.png)
(2)在(1)条件下,是否存在直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222201-99874.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222201-80844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222201-79049.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222201-96977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222154-92457.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222154-63813.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222154-59354.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222154-72996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222155-56837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222155-41426.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222144-60003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222144-58097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222144-70617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222144-89865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222145-44386.png)
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