题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005211-86368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005211-17842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005211-76823.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005211-80673.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005212-88405.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005212-96503.png)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005212-21444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005212-85528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005211-80673.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005212-88405.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-15134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-12487.png)
⑴直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-40636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-30593.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-15134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005156-75733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005156-43940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005156-36764.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-40636.png)
⑵过圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005155-15134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005156-23124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005157-15281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005157-32670.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005157-32670.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005157-34988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005157-13764.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005157-69534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005158-75724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005149-55342.gif)
A.(4,6) | B.[4,6) | C.(4,6] | D.[4,6] |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005146-34866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005146-13612.gif)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005136-66874.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005136-96579.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005136-14032.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005136-56523.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005137-29373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005136-56523.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005137-51328.gif)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005137-36974.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005137-67756.gif)
(2)当弦
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005137-67756.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023005136-56523.gif)
A.(x-4)2+(y+5)2="1" | B.(x-4)2+(y-5)2=1 | C.(x+4)2+(y+5)2="1" | D.(x+4)2+(y-5)2=1 |
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