题目
题型:不详难度:来源:
A.![]() | B.![]() |
C.y=sin2x+cos2x | D.y=![]() |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001555-81438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001554-58198.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001555-99669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001555-76155.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001554-77974.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001556-88958.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001556-38552.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001556-12220.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001556-77981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001556-23324.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001557-15611.png)
核心考点
试题【下列函数中,最小正周期为π的偶函数是( )A.B.C.y=sin2x+cos2xD.y=】;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/20190830/20190830001545-97283.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001546-12387.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001540-87739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001540-51016.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001540-36115.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001511-82124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001511-89626.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001512-23392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001512-47459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001512-77296.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001512-33912.png)
(2)将函数
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001512-47459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001513-54403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001513-63373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001513-65827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001459-44306.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001459-57013.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001459-14684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001500-27310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001454-18760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001455-54229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001455-10856.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190830/20190830001455-36076.png)
A.![]() | B.![]() | C.3 | D.![]() |
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