Please, what is a derivative of:

?

Many thanks!

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- August 5th 2013, 08:00 AMBoo(xy^2-lny-(x+y)/x=0)'
Please, what is a derivative of:

?

Many thanks! - August 5th 2013, 08:19 AMShakarriRe: (xy^2-lny-(x+y)/x=0)'
What are you differentiating with respect to? Do you know what a partial derivative is?

- August 5th 2013, 11:20 AMSorobanRe: (xy^2-lny-(x+y)/x=0)'
Hello, Boo!

Quote:

Multiply by

Differentiate implicitly:

. .

. .

. .

. .

Multiply by

Therefore: .

- August 6th 2013, 06:14 AMBooRe: (xy^2-lny-(x+y)/x=0)'
Please, can u explain me first line, differentiate implicitly?

Many thanks! - August 6th 2013, 08:05 AMSorobanRe: (xy^2-lny-(x+y)/x=0)'
Hello, Boo!

Quote:

Please, can u explain me first line, "differentiate implicitly"? . No!

If you do not understand Implicit Differentiation,

. . you have no business attempting this problem.