If f(x,y,z) = f(x,y) g(y) h(z), find Fxyz

The question is regarding partial differentiation. I tried doing it and managed to obtain fxgyhz.

Is this the way to simplify the answer ?

Thanks.

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- June 28th 2010, 07:26 AMLilkazePartial Differentiation
If f(x,y,z) = f(x,y) g(y) h(z), find Fxyz

The question is regarding partial differentiation. I tried doing it and managed to obtain fxgyhz.

Is this the way to simplify the answer ?

Thanks.

- June 28th 2010, 07:31 AMAckbeet
Hmm. I don't think you've managed to take the y derivative properly. You have two functions of y multiplied together, so you'll have to use the product rule.

- June 28th 2010, 05:12 PMLilkaze
Would I get the following:

Fx = fx(x,y) g(y) h (z)

Fxy = [fx(x,y) gy + fxy(x,y) g(y)]h(z)

Fxyz = [fx(x,y) gy + fxy(x,y) g(y)]hz - June 28th 2010, 06:03 PMAckbeet
That looks good to me!