Question

scrieti ca puteri ale lui 2/5 fiecare dintre numerele 4/25, 1, 16/625 si 2/5

Answer 1

$\frac{4}{25} = ( \frac{2}{5} )^{2}$
$1 = ( \frac{2}{5} )^{0}$
$\frac{16}{625} = ( \frac{2}{5} ) ^{4}$
$\frac{2}{5} = ( \frac{2}{5} )^{1}$