题目
题型:不详难度:来源:
![](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)
答案
解析
试题分析:由圆的方程可知圆心为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222155-49941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222154-92457.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222155-25613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222156-11055.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222156-47107.png)
核心考点
举一反三
![](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)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222136-73517.png)
(1)已知不过原点的直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222136-21290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222136-14551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222137-65495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222137-84212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222136-21290.png)
(2)求经过原点且被圆
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222136-14551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222121-50737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222121-81035.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222122-27647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222122-17691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222122-73016.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222122-45367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222122-73016.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222122-56907.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-81510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-14577.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-48140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-81510.png)
(2)经过
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-19739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-75028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222123-20472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222124-53251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222124-32777.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222112-63937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222112-42645.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222112-25025.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222107-11100.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022222107-49939.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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