Change of Base Formula - Concept

Concept Concept (1)

When we encounter logarithms with bases not of the common or natural logarithm, we often need the change of base formula. The change of base formula allows us to convert a logarithm from one base to another. By using the change of base formula, we can change a logarithmic term to allow us to input it into a calculator. Most calculators only accept logarithms of base 10 or base e.

Sample Sample Problems (3)

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Change of Base Formula - Problem 1

Change of Base:

log364
log38
Problem 1
How to use the change of base formula to condense two logs into one.
Change of Base Formula - Problem 2
Problem 2
How to evaluate logarithmic expressions using a calculator and change of base formula.
Change of Base Formula - Problem 3
Problem 3
How to use change of base formula to compare logarithmic expressions.