题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224327-97565.png)
A.![]() | B.![]() |
C.-3≤a≤一![]() ![]() | D.a≥7或a≤—3 |
答案
解析
试题分析:圆
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224328-18625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224328-89446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224328-71608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224329-92671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224329-64204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224329-34448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224329-32696.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224329-75480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224330-89705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224329-92671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224330-74942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224330-89073.png)
核心考点
试题【两条平行直线和圆的位置关系定义为:若两条平行直线和圆有四个不同的公共点,则称两条平行线和圆“相交”;若两平行直线和圆没有公共点,则称两条平行线和圆“相离”;若两】;主要考察你对点到直线的距离等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224312-99204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224312-11298.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224312-53156.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-33778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-38684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-80231.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-43262.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-23691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-33778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224314-45485.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224314-95795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224314-55274.png)
(1)求圆
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-38684.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224314-68943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224313-33778.png)
(3)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224314-95552.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224307-33023.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224255-58467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224256-99488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224248-77291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224248-32617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224249-42052.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224249-63536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224249-64894.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224249-96035.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224239-89916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022224239-87357.png)
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