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X 0 p. 5sin(2x-п/4)= -5/2. Sin 4x- п/6 = 1. Sin(3x-п/4)=1. Sin (x/2+п/6)= 1/4.
5sin(2x-п/4)= -5/2. Sin 4x- п/6 = 1. Sin(3x-п/4)=1. Sin (x/2+п/6)= 1/4.