题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-69779.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-81029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-12011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-20959.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045915-45997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-20959.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045915-75730.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-69779.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-81029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045914-12011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045915-56881.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045908-79050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045908-23473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045908-43810.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045908-40408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045908-40708.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045908-20974.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045901-90217.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045901-16969.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045902-19396.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045858-84020.png)
A.120° | B.60° | C.150° | D.30° |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045851-87810.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045844-75427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045844-14266.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045844-54495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045844-45436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045845-91941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045845-17271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045845-81664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045845-20787.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045845-55744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045846-18421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045846-51875.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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