Respuesta :

vwillisp3rgrd

[tex]( {3}^{2} {r}^{2} {t}^{4} )( \frac{1}{ {9}^{2} {r}^{2} {s}^{4} {t}^{6} } )[/tex]
[tex] \frac{1}{9 {s}^{4} {t}^{2} } [/tex]