题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224708-72440.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224709-96821.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224709-37936.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224709-44493.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224710-74467.png)
解析
试题分析:(1)先将函数化为
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224710-27681.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224710-52125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224710-66532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-23725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-66213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224712-93826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224712-12683.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224709-44493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224712-93454.png)
试题解析: (1)由f(x)=2
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224713-15943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224713-15943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224713-15943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224713-74949.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-23725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224713-12544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-23725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-66213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224712-93826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224713-15729.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-23725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224714-57658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224714-52959.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-23725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224714-87222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224711-23725.png)
sin
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224714-87222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224710-74467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224710-27681.png)
核心考点
试题【已知函数).(1)求函数的最小正周期; (2)若,求的值.】;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/20190829/20190829224654-10180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224654-98226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224654-65997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224655-54405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224656-32986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224656-16723.jpg)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224654-98226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224656-46211.png)
(2)求方程
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224656-79215.png)
(3)是否存在常数
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224657-97461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224657-58811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224657-46499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224657-97461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224647-71460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224647-27336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224647-75656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224647-31673.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224648-77335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224648-19947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224648-37616.png)
(1)试求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224648-75348.png)
(2)某货船的吃水深度(船底与水面的距离)为7米,安全条例规定船舶航行时船底与海底的距离不小于3.5米是安全的,问该船在当天的什么时间段能够安全进港?若该船欲于当天安全离港,则它最迟应在当天几点以前离开港口?
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224624-33503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224624-74170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224624-63676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224625-86758.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224625-49041.png)
(1)求函数y=f(x)在
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224624-33503.png)
(2)求方程f(x)=
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224625-85077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224610-26597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224610-50854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224610-41464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224611-40384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224611-23000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224611-43352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224611-22570.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224606-41736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224607-61938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224607-27547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190829/20190829224607-93977.png)
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