题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223519-97015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223519-90429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223520-17847.png)
A.相切 | B.相交 | C.相离 | D.相切或相交 |
答案
解析
试题分析:由圆的方程得到圆心坐标为(0,0),半径r=a,
由M为圆内一点得到:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223520-21918.png)
则圆心到已知直线的距离
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223520-46179.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223514-68734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223514-29542.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223514-91093.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223514-24059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223515-68984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223503-40978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223504-69385.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223504-16617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223504-26403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223504-20723.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223505-88782.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223505-39263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223505-44442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223505-60828.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223445-61335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223445-85810.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223446-69828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223446-99785.png)
(Ⅰ)求圆
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223445-61335.png)
(Ⅱ)点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223446-23670.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223446-41495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-46407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-74846.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-46407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-86451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-86451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223445-61335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-55701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-33927.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223448-74801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223447-86451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223437-91102.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223438-76408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223438-31050.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223432-74478.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223433-38795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022223433-31969.png)
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