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gomes.
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function --- derivative (help!)
[PLAIN]http://img15.imageshack.us/img15/705/123gm.jpg
but instead of f(x)=x^-2, let f(x) = x^(1/2 )
So, I did
[ (x+h)^1/2 - (x)^1/2 ]/ h
But I am not sure how to simplify it. What would be my next step? Thanks a lot :)
Homework Statement
[PLAIN]http://img15.imageshack.us/img15/705/123gm.jpg
but instead of f(x)=x^-2, let f(x) = x^(1/2 )
The Attempt at a Solution
So, I did
[ (x+h)^1/2 - (x)^1/2 ]/ h
But I am not sure how to simplify it. What would be my next step? Thanks a lot :)
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