The step that you did incorrectly was the \sqrt((x+h))/h not (\sqrt(x)/h-(\sqrt(h)/h))
I need to find the derivative of
I have gotten this far:
At this point I have tried some crazy stuff to eliminate the h on the bottom. The closest I have come is this: which can be broken down into, which leaves this: , right?
If I haven't confused myself along the way, then I should be on track, and the answer seems tantilizingly close, but I get =
What am I doing wrong?