The image you've uploaded seems to display the logarithmic change of base formula:

$\log_a b = \frac{1}{\log_b a}$

This formula allows you to convert logarithms from one base to another. Specifically, the logarithm of $b$ with base $a$ can be rewritten in terms of the logarithm of $a$ with base $b$.

Would you like a more detailed explanation of this formula or have any other questions about logarithms?

Here are some related questions to explore:

1. How do you convert a logarithm from one base to another using this formula?
2. What is the change of base formula's application in solving logarithmic equations?
3. How can you apply this formula in practical problems like exponential growth?
4. What happens when the base of the logarithm is 10 or $e$?
5. Can this formula be used to simplify complex logarithmic expressions?

Tip: When using the change of base formula, ensure that both the numerator and denominator are logarithms in the same base for consistency.