Question

$\frac{1}{2} ^{- 2}$

Answer 1

(1/2)^-2

(2/1)2 =
4/1=
4

Answer 2

$(\dfrac{1}{2})^-^2$

Inverte para tira o sinal negativo

$(\dfrac{2}{1})^2 => 2^2 = 4$