Calculus
posted by Abigail .
Let f(x)= (1/x). Use the limit definition of derivative to find f'(x).
My professor's answer is: 1/x
but I keep getting: 1/x^2
what do I have to do to get that answer?

Calculus 
MathMate
You do not. You have the correct answer, but make sure you have the question correctly copied.
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