Question

Using the change-of-base formula, which of the following is equivalent to thelogarithmic expression below?

Answer 1

We use the rule;

`(log_ap)/(log_aq)=log_qp`

Looking at the question;

`log_621=(log_(10)21)/(log_(10)6)`

Thus, the answer is

`(log_(10)21)/(log_(10)6)`

Option C