题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043200-66398.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043200-25859.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043200-86682.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043201-57617.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043201-51770.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043201-38622.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043200-66398.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043201-57629.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043202-88909.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043202-71232.gif)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043157-45292.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043157-45292.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043157-89772.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043150-47319.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043150-99765.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043150-34831.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-37162.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-77180.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043150-47319.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-37162.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-77180.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-54058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-30690.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043152-17379.gif)
(Ⅰ)求圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043150-47319.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043151-37162.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043152-96141.gif)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043152-93662.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043152-50424.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043153-65592.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043145-66525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043145-28237.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043145-13008.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043139-94650.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043139-20578.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043139-82251.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043139-44986.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043140-46025.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043140-90939.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043140-27014.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043140-73817.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043140-20810.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043141-12490.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043141-95595.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043141-30297.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043141-66389.gif)
(二)选做题(14,15题,考生只能从中选做一题)
(几何证明选讲选做题)如图4,
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043133-66740.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043133-78190.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043133-69372.gif)
半圆上,
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043133-32189.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043133-40021.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043134-16529.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043134-85249.gif)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043134-93281.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023043134-19877.gif)
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