题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041311-84039.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041311-75700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041312-40487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041312-19790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041312-32465.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041312-71550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041313-47333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041313-76321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041313-68853.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041313-64955.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041313-20193.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041314-24633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041314-88270.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041314-63849.png)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041314-47567.png)
从而,
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041315-11899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041315-97337.png)
T=
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041315-83625.png)
当m<0时,解得
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041315-60828.png)
从而,
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041315-14080.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041315-83625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041316-62645.png)
最小为
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041316-20712.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041316-16936.png)
核心考点
试题【已知函数的定义域为,值域为.试求函数()的最小正周期和最值.】;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/20190911/20190911041301-12439.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041301-28180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041301-62529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041301-27766.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041302-56037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041302-37713.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041252-11580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041253-20952.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041253-64809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041253-25235.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-25180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57933.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57612.png)
(1)设f(x)=
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-25180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-57933.png)
(2)设有不相等的两个实数x1,x2∈
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041246-18320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041233-39928.png)
A.向左平移![]() | B.向右平移![]() |
C.向左平移![]() | D.向右平移![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041204-61915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041204-67967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911041204-57382.png)
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