А) 3*с²* (1/3)*с³ = с⁵, k=1 n = 5
Б) 5*cd * 1/4*c²d² = 5/4*c³d³ = 5/4*(cd)³,
В) (1/3*cd)² = c²d²/9
Г) - (с⁴d)³ = - c¹²d³