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已知函数f(x)=sin(2x+φ),其中0<φ<2π,若恒成立,且,则φ等于(...
已知函数f(x)=sin(2x+φ),其中0<φ<2π,若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102538109759201/SYS201311031025381097592010_ST/0.png)
恒成立,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102538109759201/SYS201311031025381097592010_ST/1.png)
,则φ等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102538109759201/SYS201311031025381097592010_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102538109759201/SYS201311031025381097592010_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102538109759201/SYS201311031025381097592010_ST/4.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102538109759201/SYS201311031025381097592010_ST/5.png)
考点分析:
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