题目
题型:不详难度:来源:
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070549-67218.png)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070542-18670.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070543-73740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070525-82430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070525-79603.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-72780.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-55639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070525-79603.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-22145.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-55639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-55639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-39183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070526-76049.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070527-12061.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070527-79050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070527-33774.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070527-39271.png)
(1)如图,当点
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070527-79050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070527-12061.png)
①求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070528-94465.png)
②设
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070528-29808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070528-99279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070528-96699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070528-84694.png)
(2)连结
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070529-35293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070529-78910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070529-62629.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070529-40143.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-53940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-98770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-53940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-38362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-36033.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-98770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-53940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-36033.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-38362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-98770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-15157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-29908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-93391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-29908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-15157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070519-67964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070517-38362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070518-29908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070513-47371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070513-25107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070506-62161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070506-56472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070507-30674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070507-89744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070507-88833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070507-93455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070508-68912.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015070508-73411.png)
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