题目内容
设函数f(x)=sin(2x+
),则下列结论正确的是( )
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521696420.png)
A.f(x)的图象关于直线x=![]() |
B.f(x)的图象关于点(![]() |
C.f(x)的最小正周期为π,且在[0,![]() |
D.把f(x)的图象向右平移![]() |
C
对于函数f(x)=sin(2x+
),T=
=π;
当x∈[0,
]时,2x+
∈[
,
],∴f(x)在[0,
]上为增函数,故C对.
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521696420.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521790465.png)
当x∈[0,
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521743455.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521696420.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521696420.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521712413.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140824/20140824050521743455.png)
![](http://thumb.zyjl.cn/images/loading.gif)
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