Discussion Forum

The value of $\log_{\frac{-1}{3}}{81}$ is

Answer:

Explanation:

Let $\log_{\frac{-1}{3}}{81}$ =x

Then$(\frac{-1}{3})^x=81=3^{4}$

=$(\frac{-1}{3})^x=(-3)^{4}$

=$(\frac{-1}{3})^{-4}$

Therefore x=-4