Homework Statement
(1-2x3+x2)((1/x3)+1)
Homework Equations
f'g(x)+g'f(x)
f'(x)=-6x3+2x
g'(x)=(-1/x4)
The Attempt at a Solution
I found what i believe to be the derivative of both f(x) & g(x) and used the product rule to get to where I am stuck right now:
[(-6x2+2x)(1/x3)]+[(-1/x4)(1-2x3+x2)
Sorry for not showing my work on my last post, I'm on my good for nothing blackberry and apparently cannot type. My question was:
Use first principles definition to find dy/dx:
y=(-4/3x)
lim
x--> 0
---------
(X,-4/3x)
(X+h, -4/3(X+h)
=lim»0 ((-4/3(x+h))-(-4/3x))/x+h-x
I have...