Question

81^0.75; 32^-0.4 ; ребят помогайте...

Answer 1

$81 ^{0.75} =3 ^{4* frac{3}{4}} =3^3=27.$
$32 ^{-0.4} =2 ^{5*(- frac{4}{10} )} =2 ^{-2} = frac{1}{2^2}= frac{1}{4} .$