Question

$2^{ - 3} + 3^{ - 2} \times ( \frac{1}{3})^{ - 1}$
Poderiam me explicar e dar a resposta?

Answer 1

Vamos lá


2^(-3) + 3^(-2) x (1/3)^(-1)


(1/2)^3 + (1/3)^2 x (1/3)^(-1)

1/8 + (1/3)^(2 -1)

= 1/8 + 1/3

Mmc (8 , 3)= 24

= 3/24 + 8/24 = 11/24

Espero ter ajudado !!!