you would set k(log36/log125)=log(1/12) find k and the rewrite the log36 and log125 with a and b (im assuming log is the natural log in this case ln??)
If log (36) = a and log (125) = b
find log (1/12) in terms of a and b
I tried to do things like applying the product formula to log (36), making it log (12) + log (3), and then turning log (12) into -log (1/12), but could not get any further. Any help is appreciated.