(a^1/4*a^1/3)^12 при a =(3/4)^2/7
(a^1/4*a^1/3)^12 =(а^1/4)^12*(а^1/3)^12=а^3*а^4=а^7=. ((3/4)^2/7)^7=(3/4)^2=9/16 Ответ:9/16