Question

Помогите много балов дам!!! Логарифмы

Answer 1

$5^{2-log_{5}(3)}=5^{2}*5^{-2log_{5}(3)}=25*5^{log_{5}(3^{-2})}=25*3^{-2}=25* frac{1}{3^{2}}$$=25* frac{1}{9} = frac{25}{9}$=$2 frac{7}{9}$