Question

O valor da expressão (5/3) ^ - 2 + (3/2) ^ - 1 - 1 ^ 7

Answer 1

Resposta:

$\frac{2}{75}$

Explicação passo a passo:

$(\frac{5}{3}) ^{-2} +(\frac{3}{2}) ^{-1} -1^{7} \\\\(\frac{3}{5}) ^{2} +(\frac{2}{3}) ^{1} -1 \\\\(\frac{9}{25}) +(\frac{2}{3}) -1 \\\\\frac{9}{25} +\frac{2}{3} -1\\ \\\frac{9.3+2.25-75}{75} \\\\\frac{77-75}{75} \\\\\frac{2}{75}$