题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-64175.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-64175.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-38675.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-64175.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-38675.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-57748.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-33840.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-64233.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214542-27096.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214542-59554.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214542-58109.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214543-95640.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214543-16432.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214543-80084.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214543-12806.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214543-34459.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214544-36135.gif)
因为
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214544-42986.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915214541-33840.gif)
核心考点
试题【(本小题满分12分) 已知函数f(x)=2sin(x+)cos(x+)+2cos2(x+)-,α为常数.(Ⅰ)求函数f(x)的周期;(Ⅱ)若0≤α≤π时,求使】;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/20190915/20190915213856-95483.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213856-54531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213857-90399.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213857-88565.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213857-68298.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213857-80611.gif)
(2)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213858-63892.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213858-16578.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213858-21473.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213858-53327.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213859-72537.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213834-86047.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213834-75795.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213834-75795.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213835-12334.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213834-75795.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213820-29612.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213820-83057.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213820-57628.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213821-75356.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213821-71400.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213736-20723.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213736-30719.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213736-55725.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213736-55725.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213736-55914.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213737-54709.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213721-20749.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213721-51577.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213722-25923.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213722-53566.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213722-15114.gif)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213722-70314.gif)
(2)将函数
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213722-70314.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213723-94845.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915213723-94845.gif)
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