Question

How do you evaluate `log_7 7`?

Answer 1

`log_7(7)=1`

Explanation:

If `a^m=b` in exponential form, we can write it in logarithmic form as `log_ab=m`.

Let `log_7(7)=x` and writing it in exponential form, we get `7^x=7=7^1` or `x=1`

Note - In fact for all values of `a`, we have `log_aa=1`