题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044442-78395.png)
A.1 B.
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044442-22373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044442-97019.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044442-78395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044442-97019.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044437-68660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044438-40387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044437-68660.png)
A.等边三角形 | B.锐角三角形 | C.钝角三角形 | D.直角三角形 |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-52280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-17914.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-71208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-35334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-65338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-71208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-32717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-93747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044432-52280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044433-78448.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044427-33556.png)
(1)求内角B的大小;
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044427-24493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044427-44523.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044422-27632.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044422-97259.png)
(2)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044422-11294.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020044417-74885.png)
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