Question

alguém pode me ajudar?​

Answer 1

$\left (\frac{2}{3} \right) ^{-3} = \left (\frac{3}{2} \right) ^{3} = \frac{27}{8}\\\\\left (\frac{1}{3} \right) ^{-4} = 3^4 = 81\\\\\left (\frac{4}{3} \right) ^{-2} = \left (\frac{3}{4} \right) ^{2} = \frac{9}{16}$