Question

How do you solve `log_5(4)`?

Answer 1

`log_5 4 =0,861`

Explanation:

By definition, `y=log_ax iff a^y=x`

`therefore log_5 4==y iff 5^y=4`

This is so iff `ylog5=log4`

`iff y=log4/log5=0,861`