题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021542-32285.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021542-86322.png)
(Ⅱ)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-67483.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-63588.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-36995.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-24654.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-46475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-92455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-67483.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021542-86322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-80972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-49685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-63799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-82999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021545-97107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-63799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-46475.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021545-87347.png)
(2)按照左加右减,上加下减的原则先确定
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021545-62878.png)
(Ⅰ)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021545-28477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021546-11467.png)
所以函数
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021542-86322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-80972.png)
(Ⅱ)依题意,
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021546-12055.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021546-26503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021546-11246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021547-84087.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021547-16269.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021547-72082.png)
因为
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021547-17992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021547-53889.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021548-45757.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-49685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-63799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-82999.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021548-30596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021545-97107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021544-63799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021543-46475.png)
核心考点
试题【 已知函数.(Ⅰ)求的最小正周期;(Ⅱ)若函数的图象是由的图象向右平移个单位长度,再向上平移1个单位长度得到的,当[,]时,求的最大值和最小值.】;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
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021533-85066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021533-58810.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021533-63029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021533-75865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021533-56066.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021534-64003.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021534-10009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021523-39598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021524-35599.png)
(Ⅰ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021524-31630.png)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021524-85623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021524-94523.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021525-15988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021525-38698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021525-64790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021525-32138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021525-61010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021517-79346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021517-72501.png)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021518-13253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021518-74084.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021518-78085.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021518-97913.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021512-99239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021512-65908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021512-42832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021512-29748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021512-65908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021513-81927.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021513-28690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021513-96791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021512-65908.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021500-78207.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021501-44635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911021501-42314.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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