Hi,
I have a question regarding logarithms. The question that I have is this:
I need to combine the bases of two different logs: LogaX=C and LogbX=C so how do I turn that into LogabX?
Thanks in advance
Hi,
Here is how I do :
the general formula states :
$\displaystyle \log_a X=\frac{\ln X}{\ln a}$
where $\displaystyle \ln$ is the neperian logarithm ($\displaystyle \ln=\log_e$)
$\displaystyle \log_b X=\frac{\ln X}{\ln b}$
$\displaystyle \ln_{ab} X=\frac{\ln X}{\ln ab}=\frac{\ln X}{\ln a+\ln b}$
Try to find what you want by taking the inverse