已知函数f(x)=cos(2x-π3)+2sin(x-π4)cos(x-π4),
题型:解答题
问题:
已知函数f(x)=cos(2x-
(Ⅰ)将f(x)化为f(x)=Asin(ωx+φ)+b,(A>0,ω>0,|φ|<π); (Ⅱ)若对任意x∈[-
(Ⅲ)若将y=f(x)的图象先纵坐标不变,横坐标变为原来的2倍,后向左平移
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已知函数f(x)=cos(2x-
(Ⅰ)将f(x)化为f(x)=Asin(ωx+φ)+b,(A>0,ω>0,|φ|<π); (Ⅱ)若对任意x∈[-
(Ⅲ)若将y=f(x)的图象先纵坐标不变,横坐标变为原来的2倍,后向左平移
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