题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170450-70674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170450-51501.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170450-71728.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170451-57792.png)
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170450-70674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170450-51501.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170451-71670.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170451-45099.png)
点评:本题中用到的三角函数公式主要有
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170451-52868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170452-12789.png)
核心考点
试题【设为锐角,若,则的值为_ ___】;主要考察你对正弦函数的图象与性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170443-34349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170443-79825.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170444-69946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170428-47244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170428-86513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170428-16472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170421-37028.png)
(1)当函数
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170422-58807.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909170422-63992.png)
(2)求该函数的单调递增区间。
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909160333-16080.png)
A.关于点![]() | B.关于直线![]() |
C.向左平移![]() | D.向左平移![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190909/20190909072057-46964.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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