Question

(7/3)-² Porfavor me ajudem

Answer 1

$\huge \tt ( \frac{7}{3}) ^{ - 2} = \frac{1}{ \frac{7 ^{2} }{3 ^{2} } } = \frac{1}{ \frac{49}{9} } = \red{\frac{9}{49}} \: \: \: \:$