Have you read the "Sticky: List of rules used to moderate MHF - please read carefully before posting."?
Hm... actually, you cannot cancel log like this. If it were, because you have a denominator outside the log function. If you want to cancel log, you will have to do it like this:
Then you get:
But I don't know if that will work...
I tried using this:
Then, we get:
Hence,
Though I'm not too sure where to go from here.
EDIT: From the before last line:::