Looks good to me!
Hello
This is the last identity, in this exercise.
I seem to have proved it, but I would appreciate someone checking my work to make sure that I havent got there by accident.
Multiplying the numerator and denominator by and gets me to:
, which gives:
Multiplying numerator and denominator by gives:
QED?
Thank you
Hi Siron
I really like that method, a lot. It seems more natural to me than trying to manipulate one side into the other. Thank you very much for taking the time to post it. I've got more identities to prove in other chapters and I'll be looking to use your method whenever I can.
Thanks again. It's enormously helpful, there's nothing like that in any of my books.