Question

Escreva o valor de: a) 3‐²= b) (-5/3 ) ‐³=

Answer 1

Olá,

Bem simples.

a) 3-² = $\frac{1}{3} ^{2}$ = $\frac{1 .1}{3 . 3} = \frac{1}{9}$

b) $(-\frac{5}{3} )^{-3}$ = $(-\frac{3}{5} ) ^{3}$ = $(-\frac{-3 . -3 . -3}{-5 . -5 . -5}) = -\frac{27}{125}$

Mirelle.