- #1

VikingStorm

"Suppose f'(2)=4, g'(2)=3, f(2)=-1 and g(2)=1. Find the derivative at 2 of each of the following functions

a. s(x)=f(x)+g(x)

b. p(x)=f(x)g(x)

c. q(x)=f(x)/g(x)"

I began doing this, without reading the find the derivative part. What order would I exactly solve it in? Or does it work straight in by plugging in the derivatives? (too simple, so must not be it)

"If f(x)=x, find f'(137)"

This is a pure concept question I'm sure...

"Explain what is wrong with the equation (x^2-1)/(x-1)=x+1, and why lim(x^2)/(x-1)=lim(x+1) both x->1"

The top factors out and supposedly cancels, though I'm not sure why I can't do that.