f(x)=2sin(wx+φ-π/6)
φ-π/6=kπ,所以φ=kπ+π/6
取k=0,φ=π/6
T=2π/w=π,所以w=2
f(x)=2sin(2x)
已知函数f(x)=√3sin(wx+φ)-cos(wx+φ)(0
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