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