Question

How do you evaluate `log_3 81`?

Answer 1

The answer is `4`.

Explanation:

`log_(3)81` is the same thing as writing `3^x = 81`, where you have to solve for `x`. `3` is the base number.

`3 * 3 * 3 * 3` is `81`, proving `3^4 = 81`. So, `4` is the answer.