Here's the question you clicked on:
mr.luna
when you differentiate for example 1/x are the top terms of the quotient rule inter changable?
No, it has to be (the derivative of the top times the bottom) minus (the top times the derivative of the bottom).
I always just used the product rule. Never bothered with the quotient rule. You can rewrite the quotient rule as the product rule and deal with stuff that way. I think it's conceptually easier to do and easier to derive if you forget where it comes from.
ok got it. thank you very much for clearing that up