题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003513-77178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003513-99762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003513-28526.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003513-30397.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003513-90786.png)
核心考点
试题【已知,,则=_____】;主要考察你对同角三角函数的基本关系等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003502-26855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003502-38044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003503-29851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003503-71715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003503-29418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003502-26855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003503-59844.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003444-23418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003444-27148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003445-80819.png)
A.![]() | B.![]() ![]() | C.![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003431-59768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003431-58381.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003406-14281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003406-18308.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003406-38623.png)
(1) 求
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003406-12144.png)
(2) 求
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003406-38623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003406-90409.png)
已知
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003355-28452.png)
(1) 化简
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003355-35832.png)
(2) 若
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003355-25376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003355-85990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003355-35832.png)
(3) 若
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003356-28417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190824/20190824003355-35832.png)
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