题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911051014-23979.png)
A.该函数的值域是![]() |
B.当且仅当![]() |
C.当且仅当![]() ![]() |
D.该函数是以![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911051015-49433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911051016-76397.png)
对照可知正确答案为C。
核心考点
试题【对于函数则下列正确的是( )A.该函数的值域是B.当且仅当时,该函数取得最大值1C.当且仅当时D.该函数是以为最小正周期的周期函数】;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/20190911/20190911051009-99847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911051010-95549.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050943-17291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050944-68126.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050944-84400.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050944-10713.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050944-72989.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050945-80032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050945-53570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050936-37896.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050924-31427.png)
(1)求出该函数的单调区间;
(2)用“五点作图法”做出该函数在一个周期内的图像.
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050924-46258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-76560.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-27891.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-52410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-52410.png)
(2)在(1)的条件下,求最小正实数
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-49538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-52410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-49538.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050905-52410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050906-53973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911050906-47457.png)
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