Question

calcule as potências:
(2/3)²

(3/5)³

5²/7

Answer 1

$( \frac{2}{3} ) {}^{2} = \frac{2 {}^{2} }{3 {}^{2} } = \frac{4}{9}$
$( \frac{3}{5} ) {}^{3} = \frac{3 {}^{3} }{ {5}^{3} } = \frac{27}{125}$

$\frac{5 {}^{2} }{7} = \frac{25}{7}$