Question

quantos que e (5/2)-²

Answer 1

$\sf ( \frac{5}{2} ) ^{ - 2} \\ \\\sf \frac{1}{( \frac{5}{2} ) ^{2} } \\ \\\sf \frac{1}{ \frac{5 ^{2} }{2 ^{2} } } \\ \\\sf \frac{1}{ \frac{25}{4} } \\ \\\sf \red{ \frac{4}{25}ㅤ}$