# Derivative of log(x^2+y^3) ?

Derivative of log(x^2+y^3) ???

I'm familiar with the derivative of log x but not when x is raised to a power or when y is involved. Could someone offer some help? And if you know of a website that fully explains this please let me know. Thanks.

D H
Staff Emeritus
What is the general rule for taking a derivative of something in the form f(g(x)) ?

I don't know, and I never will unless you tell me.

I don't know, and I never will unless you tell me.

Do you have a calculus book? Have you ever used it? The derivative of a function of the form f(g(x)) is a very important topic and will certainly be covered in a calculus book, you shouldn't expect people to do your work for you.

I don't know, and I never will unless you tell me.
Guess you'll never learn a damn thing.

chain rule my friend. chain rule

I'm familiar with the derivative of log x but not when x is raised to a power or when y is involved. Could someone offer some help? And if you know of a website that fully explains this please let me know. Thanks.

if x and y are both independent variable then you have to go for partial derivative.

D H
Staff Emeritus