题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031201-82550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031201-88870.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031201-74538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031201-91249.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031202-82349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031202-21928.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
试题分析:如图,圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031201-88870.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031203-50762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031201-82550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031203-64979.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031203-25325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031202-82349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031204-96863.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031204-27797.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031204-24524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031204-79995.png)
点评:关于直线与圆的位置关系的题目,一般情况下,结合圆心到直线的距离对解决问题有很大的作用。
核心考点
举一反三
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031152-80597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031148-82113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031149-40092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031149-47519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031148-82113.png)
A.相交 | B.相切 | C.相离 | D.不能确定 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031142-64031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031142-97704.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031142-57820.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031142-93822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031142-43333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031143-78973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031143-31069.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031143-20771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031143-64571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031144-94443.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031144-14531.jpg)
(Ⅰ)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031143-64571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031144-87021.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031143-78973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031142-43333.png)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031144-10290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031145-89563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031145-51821.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031137-16434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031138-64546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023031138-57445.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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