Question

calcule o valor da expressão abaixo:
5^0+5^-1 / 5^-2

Answer 1

$\frac{5^0+5^{-1}}{5^{-2}} = \\ \\ \frac{1+ \frac{1}{5}}{ \frac{1}{5^2}}= \\ \\ \frac{1+ \frac{1}{5}}{ \frac{1}{25}} = \\ \frac{ \frac{5+1}{5} }{ \frac{1}{25}} = \\ \\ \frac{ \frac{6}{5}}{ \frac{1}{25}} = \\ \\ \frac{6}{5}. \frac{25}{1} = \\ \\ \frac{150}{5} = \\ \\ 30$