Question

como resover (1/2)^-1.4^-2

Answer 1

Resolvendo a potência:

$\dfrac{1}{2}^{-1} = \dfrac{1}{\dfrac{1}{2}}} = 1~\cdot~ \dfrac{2}{1} =2.$

$2~\cdot~4^{-2}\\\\\\ 2~\cdot~0,0625~\therefore~ \dfrac{1}{2}^{-1}~\cdot~4^{-2}} = 0,125~\textsf{Ou}~\dfrac{1}{8}.$

Espero que te ajude. '-'