# How do you use the Change of Base Formula and a calculator to evaluate the logarithm #log_4 24#?

##### 2 Answers

Jun 12, 2018

Below

#### Explanation:

The change of base formula is given by:

Looking at

Jun 12, 2018

#### Explanation:

from first principles

take logs to both sides ( we will use base 10)

note: some calculators now have a function that can evaluates logarithms in any base