题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053812-77179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053812-55643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053813-30668.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
答案
解析
思路分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053812-77179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053812-55643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053814-80448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053814-96885.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053814-20218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053814-64568.png)
点评:此题需注意舍去
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053814-20218.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053807-72760.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053807-69467.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053807-92774.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053807-54596.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053808-14191.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053807-72760.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053802-88729.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053802-71128.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053803-90340.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053803-96575.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053802-88729.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053757-24189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053757-52243.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053757-86197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053758-57465.png)
A
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053758-35927.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053758-48336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053758-11703.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053759-88189.png)
已知位于
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053749-20355.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053749-20355.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053749-18837.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053749-18837.gif)
(I)求圆C的方程;
(II)若经过点(1,0)的直线
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053750-34929.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053750-21269.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053750-79591.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053745-45034.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020053745-86268.gif)
A.![]() | B.![]() | C.![]() | D. 2 |
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