Question

faça os cálculos e mostre que (2/9)^2 x (2/3)^-4 = 1/4

Answer 1

(2/9)^2 x (2/3)^-4 = 1/4

4/81(2/3)^-4 = 1/4

4/81(3/2)^4 = 1/4

4/81(81/16) = 1/4

(324/1296)/3 = 1/4

(108/432)/16 = 1/4

(18/72)/18 = 1/4

1/4 = 1/4

Espero ter ajudado ;)