Images X3 SIN X

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X3 sin x. Sin(2x-п/2)=-1. Sin(3п/2+x). Sin(x+п/2). Sin(2x-п/3)=0.
Sin(2x-п/2)=-1. Sin(3п/2+x). Sin(x+п/2). Sin(2x-п/3)=0.

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