Question

calcule.as potências

Answer 1

$( - 4) { }^{ - 2} = 0.063 \\ ( + 3) {}^{ - 3} = 0.037 \\ ( - \frac{2}{7} ) {}^{ - 2} = 12.250 \\ ( + \frac{3}{4} ) {}^{ - 4} = 3.160$