Hi

I have this calculus question question which has caused me some trouble:

Where f is diffentiable

I need to show that

How do I show that?

Is it by using the chain rule ?

/Fred

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- Sep 20th 2005, 11:52 AMMathman24Urgent help needed
Hi

I have this calculus question question which has caused me some trouble:

Where f is diffentiable

I need to show that

How do I show that?

Is it by using the chain rule ?

/Fred - Sep 20th 2005, 11:27 PMrgep
Yes, use the chain rule. For example, partial d/dx of f(x^2-y^2) is f'(x^2-y^2) times partial d/dx of (x^2 - y^2). Here f' denotes the derivative of f as a function of a single variable.