Derivative using a limit definition

It's pretty straight forward procedure.

We have a function:

To get the derivative, we use the limit definition.

But how can I get rid of **6x** in the numerator? Because that's the problem, I can't get the proper derivative, if the **6x** is in the numerator.

Re: Derivative using a limit definition

Quote:

Originally Posted by

**Nforce** It's pretty straight forward procedure.

We have a function:

To get the derivative, we use the limit definition.

But how can I get rid of

**6x** in the numerator? Because that's the problem, I can't get the proper derivative, if the

**6x** is in the numerator.

second line :

should be because

Re: Derivative using a limit definition

Beaten to it by princeps.(Crying)

Re: Derivative using a limit definition

Oh, that thing I didn't saw. Thank you.

Re: Derivative using a limit definition

In fact you made a few mistakes.

Quote:

Originally Posted by

**Nforce**

Re: Derivative using a limit definition

This fact can now be easily applied to the original problem.