已知函数f(x)=cos(ωx+φ)(ω>0,0≤φ≤π)是R上的奇函数,且最小正周期为π.
(1)求φ和ω的值;
(2)求g(x)=f(x)+
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f(x+
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)取最小值时的x的集合.
考点分析:
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三个实数a,b,c成等比数列,若有a+b+c=1成立,则b的取值范围是( )
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B.
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D.
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函数f(x)=Acos(ωx+φ)(A>0,ω>0)的部分图象如图所示,则f(1)+f(2)+…+f(2009)的值为( )
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A.0
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C.1
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已知方程
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表示焦点在x轴上的椭圆,则m的取值范围是( )
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B.m>-2
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D.m>2或-2<m<-1
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1:x
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