0 From the problem, we know that the minimum positive period of the function S is T=π, and 0 ω is greater than 0, so w=2π/t=2.

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S function =sin(2x+π/4), t5 and g(x)=cos2x=sin2(x+π/8)+4]

We know that g(x) 1 shifts π/8 unit lengths to the left.