Looking for a bit of help on my log rules here, thought I had a relatively idea until trying to solve this:

Prove

=

So choosing to start with the left side and find the right:

- can I just use ln on a portion of the equation like I have here

Really rusty on this so if anyone can have a quick look and let me know if there are errors in there that'd be great. (also first time using LaTeX)

Thanks