Question

19. Calcule as potências

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Answer 1

Explicação passo-a-passo:

a) 1^2 / 3^2 = 1/9

b) 2^2 / 7^2 = 4/49

c) 7^2 / 3^2 = 49/9

Answer 2

Resposta:

$a) ( \frac{1}{3} )^{2} = ( \frac{1}{3} ) \times ( \frac{1}{3} ) = \frac{1}{9} \\ b( \frac{2}{7} )^{2} = ( \frac{2}{7}) \times ( \frac{2}{7} ) = \frac{4}{49} \\ c)( \frac{7}{3} )^{2} = ( \frac{7}{3} \times ( \frac{7}{3} = \frac{49}{9}$