Question

calcule o valor de (9-¹+6-²)-¹

Answer 1

veja

$(9^-^1+6^-^2)^-^1=$

$( \frac{1}{9} + \frac{1}{6^2} )^-^1=$

$( \frac{1}{9} + \frac{1}{36} )^-^1=$

$( \frac{4+1}{36} )^-^1=$

$( \frac{5}{36} )^-^1= \frac{36}{5}$