题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025244-33691.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
试题分析:法一:将圆的方程变形为标准方程:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025245-91996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025244-24229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025245-41288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025244-24229.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025238-99320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025239-98586.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025239-99517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025238-99320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025239-82125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025239-99517.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-50562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-64561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-50562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-30917.png)
(I)求圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-50562.png)
(II)问是否存在满足以下两个条件的直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-28359.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-32895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-50562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-75916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-75916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025231-37610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025213-46060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025213-93398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025213-93983.png)
(Ⅰ)求动点C的轨迹E的方程;
(Ⅱ)设椭圆的左右顶点分别为A,B,直线AC(C点不同于A,B)与直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025214-35944.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025207-58857.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025208-63733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025208-83293.png)
A.3 | B.5 | C.9 | D.25 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025201-53832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025201-16889.png)
(Ⅰ)求过
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025201-83013.png)
(Ⅱ)求过
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025201-83013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025202-51116.png)
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