Question

resolva a seguinte expressão numérica :   

          -2                                             -3

1-1/3             multiplicado por     -1/3

                                                                                   obs:os números de cima são as potencias 

me ajudem estou com duvida

Answer 1

$1^-^2-( \frac{1}{3} )^-^3\times(- \frac{1}{3} )=$

$1-(3)^3\times(- \frac{1}{3} )=$

$1-(27)\times(- \frac{1}{3} =$

$1-(-9)=1+9=\fbox{ 10 }$

Answer 2

$1^-^2 - \frac{1}{3}^-^3 *(- \frac{1}{3}) \\ \\ \\ \frac{1}{1^2} - \frac{3}{1}^3 * ( - \frac{1}{3}) \\ \\ \\ 1 - 27 * (- \frac{1}{3}) \\ \\ 1 - \frac{27}{3} \\ \\ 1 + 9 => 10$