题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205634-62142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205634-28647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205635-93484.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:∵x∈
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-96479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-51184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-48555.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
∵函数f(x)=sin(ωx+
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-96479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-48724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-91402.png)
∵f(x)=sin(ωx+
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-91402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-27494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-51184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-24843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-91402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-48555.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205636-20273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205638-21978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205637-27494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205638-69191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205638-73086.png)
故选C.
点评:中档题,对正弦型函数的研究,注意将
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205638-70441.png)
核心考点
试题【已知函数在上是减函数,则的取值范围( )A.B.C.D.】;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/20190901/20190901205613-90688.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205613-30814.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205607-91400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205607-79604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205607-61644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205608-25788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205557-27097.png)
①图象C关于直线
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205557-46504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205558-33296.png)
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205558-27098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205558-38484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205558-19037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205551-82442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205551-57792.png)
(1)化简
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205551-68043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205551-18644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205551-68043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205524-17272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190901/20190901205524-17272.png)
A.向右平移![]() | B.向左平移![]() |
C.向右平移![]() | D.向左平移![]() |
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