I can't tell whether you mean this is Problem Number 2 and you want to prove the identity:
Or if you want to solve the equation:
for
I know it is a terrible burden to place on you poor over-worked students, but a little helpful information telling us what it is you want would be highly appreciated. I hope that isn't too much to ask given that the tutors on this site are all uncompensated volunteers giving of their time to help you.
