I am trying to differentiate this equation.
I have done it one way and got this solution (I don't know how to put it into Math formatting):
I used the quotient rule, and took out $y$ as a constant.
However when I looked at the solutions, my lecturer got:
I've simplified her solution so I know mine is right. However in order to complete the rest of the question it's far easier to have it in her form.
Can someone please walk me through, step by step, how to get this solution? I'm getting myself very confused.
Thanks in advance.