Respuesta :
apply the exponent rule: a^-1=1-a
(xy)^-1=1/xy
Apply the fraction rule: 1/b/c=c/b
apply rule a/1=a
=xy
(xy)^-1=1/xy
Apply the fraction rule: 1/b/c=c/b
apply rule a/1=a
=xy
[tex]\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\\cfrac{1}{(xy)^1}\implies (xy)^{-1}[/tex]
