Respuesta :

remember
[tex]\frac{x^m}{x^n}=x^{m-n}[/tex]
and
[tex]x^{-m}=\frac{1}{x^m}[/tex]

so
[tex]\frac{3^2}{3^4}=3^{2-4}=3^{-2}=\frac{1}{3^2}=\frac{1}{9}[/tex]
ACCESS MORE