Find the derivative of using the following definition:

I started with

which simplifies a bit to

but where do you go from there? Thanks!

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- February 28th 2013, 07:10 AMRagnarokDerivative of a complex function using limit definition
**Find the derivative of using the following definition:**

I started with

which simplifies a bit to

but where do you go from there? Thanks! - February 28th 2013, 07:38 AMPlatoRe: Derivative of a complex function using limit definition
- February 28th 2013, 07:53 AMhollywoodRe: Derivative of a complex function using limit definition
Try this:

- Hollywood

Awww - Plato, you beat me! - February 28th 2013, 07:55 AMRagnarokRe: Derivative of a complex function using limit definition
Ah thank you! I forgot my difference of squares factorization.