# Thread: Simplifiying a log expression

1. ## Simplifiying a log expression

Simplify the expression $log_{49}(7)$ How is the answer 1/2?

$\log_{a} b = \frac{\log b}{\log a}$
Noting that $49 = 7^{2}$, keep in mind that: $\log a^{b} = b\log a$
3. $$ln7/ln49/$$ = .5