Question

calcule as potencias
(2/5)-2
(-2/5)-3
3*-1
(1/8)-2

Answer 1

Resposta:

$( \frac{2}{5}) {}^{ - 2} = ( \frac{5}{2} ) {}^{2} = ( \frac{125}{2} )$

$( - \frac{2}{5} ) {}^{ - 3} = ( - \frac{5}{2} ) {}^{3} = ( - \frac{125}{8})$

${3}^{ - 1} = \frac{1}{3}$

$( \frac{1}{8} ) {}^{ - 2} = ( \frac{8}{1} ) {}^{2} = ( \frac{64}{1} )$

Explicação passo-a-passo:

espero que seja isso