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Thu 12 Feb, 2009 02:16 am
Use the formula of differentiation from the first principle:
f'(x) = lim[h-->0] (f(x+h)-f(x))/h
to prove that if f(x) = 1/x then f'(x) = -1/x^2
Any ideas?
@aperson,
A google search will give first principles derivative d/dx x^n = nx ^ (n-1)
@fresco,
Re: Google search
http://www.dcu.ie/mathtutor/differentiation/Main.html#
Select second item in list/video tutorial
@aperson,
Thanks. I jumped the gun a bit - we learned about it in class just today.
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