Calculus
posted by CMM .
Find f'(a).
f(x)= (x^2 + 1)/(x  2)
So,
[[(a + h)^2 + 1]/[(a + h)  2]]  [(a^2 + 1)/a  2] and the whole thing divided by h
I tried simplifying it and ended up with [a + h/2]  (a2), which is incorrect. I used wolfram alpha and got (a^2  4a  1)/(a  2)^2 but I do not know how to get this. Please help.
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