Answer
$-1log_{4}5=-log_{4}5 $ $
Work Step by Step
The power property of logarithms tells us that $log_{b}x^{r}=r log_{b}x$ (where x and b are positive real numbers, $b\ne1$, and r is a real number).
Therefore, $ log_{4}5^{-1}=-1 \times log_{4}5=-1log_{4}5=-log_{4}5 $ $.
