Question

Помогите плиз :: Вычислите : (9^2n * 27^(n+1))/3^7n

Answer 1

(9^2n*27^(n+1))/3^7n=((3^2)^2n * (3^3)^(n+1)) / 3^7n = (3^4n * 3^(3n+3)) / 3^7n=(3^4n *3^3n*3^3) / 3^7n = (3^7n*3^3) / 3^3n = 3^3=27.