Вычислите период функций
А)у=sin^2(x)
б)y=cos^2(x)
в)y=sin^2(x)-cos^2(x)

T=2π/|k|k=2⇒T=2π/2=πА)у=sin^2(x)y=1/2-1/2*cos2xT=2π/|k|k=2⇒T=2π/2=πб)y=cos^2(x)y=1/2+1/2*cos2xT=2π/|k|k=2⇒T=2π/2=πв)y=sin^2(x)-cos^2(x)y=-cos2x