sin^2 x-sin x=0 sin x(sin x-1)=0
|sin x=0 |sin x=0 |x=pik (k=0,1,2,3,4,...)
|sin x-1=0 |sin x=1 |x=pi/2+2pin (n=0,1,2,3,4,...)
sin^2 x-sin x=0 sin x(sin x-1)=0
|sin x=0 |sin x=0 |x=pik (k=0,1,2,3,4,...)
|sin x-1=0 |sin x=1 |x=pi/2+2pin (n=0,1,2,3,4,...)