题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225452-53248.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225452-75375.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-43381.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-79383.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-18362.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-58470.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-65656.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225452-53248.jpg)
(Ⅲ)试求当
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-58470.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-65656.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225452-53248.jpg)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225454-81087.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225454-42927.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225452-53248.jpg)
(Ⅰ)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225454-90342.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-58470.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225454-19341.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225455-82833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225455-61587.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225455-92770.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225454-81087.gif)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225455-59597.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225455-82833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-15108.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-41460.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-17192.gif)
得
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-70028.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-17192.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-65656.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225454-42927.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-17192.gif)
(Ⅲ)当
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225456-63605.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-65656.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225453-65656.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225457-19277.gif)
核心考点
试题【(本小题满分13分)已知函数的最大值为,其中.(Ⅰ)求的值(Ⅱ)如果,求函数的对称中心;(Ⅲ)试求当时,函数的单调递减区间.】;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/20190915/20190915225404-29279.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225404-44258.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225405-61011.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225405-43711.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225308-13152.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225308-47938.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225308-58006.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225308-28187.jpg)
则
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225309-31786.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225246-55530.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225246-57833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225247-32786.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225247-17513.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225247-93908.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225247-70274.gif)
(Ⅰ)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225248-43533.gif)
(Ⅱ)把函数
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225248-30212.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225248-89811.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225248-87371.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225248-87371.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225248-79404.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225246-57833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225054-55882.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225055-31484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225055-47336.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225055-68421.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915225055-86865.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915224927-43923.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190915/20190915224927-54277.gif)
A.(0,![]() ![]() | B.(0,2![]() | C.(0,1![]() | D.![]() |
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