Respuesta :

ok, property of exponents
[tex](x^m)^n=x^{mn}[/tex]
also
[tex]x^{-m}= \frac{1}{x^m} [/tex]

so
[tex](3^{-4})^6=3^{(-4)(6)}=3^{-24}= \frac{1}{3^{24}} [/tex]