Respuesta :

apologiabiology
[tex]( \frac{x}{y} )^m= \frac{x^m}{y^m} [/tex]
[tex]( \frac{1}{a} )^3= \frac{1^3}{a^3} = \frac{1}{a^3} [/tex]
or even [tex]a^{-3}[/tex]