题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025311-53200.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025311-31473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025311-55147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025312-69761.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025312-69822.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025312-59999.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025313-71180.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025313-72646.png)
解析
试题分析:由切割线定理可得
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025313-77850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025313-75179.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025312-33118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025314-74847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025314-24534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025314-76008.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025312-33118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025314-41714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025315-37721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025311-55147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025315-51018.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025311-55147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025315-50825.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025305-33622.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025305-71753.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025306-67852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025306-96438.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025253-80316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025253-94229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025253-19031.jpg)
(1)求圆心在直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-91672.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-20184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-74685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-23325.png)
(2)若过点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-20184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025255-97599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-74685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025255-80945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025255-96933.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025254-74685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025255-52125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025255-97599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025248-71863.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025248-44181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025248-41470.png)
A.3 B.
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025248-64772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025249-19245.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023025244-33691.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](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.![]() |
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