# Thread: Tough very long problem need help

1. ## Tough very long problem need help

Consider the expression: (x^2-y^2)^2/3+(2xy)^2/3=(x^2+y^2)^1/3.

Find the derivative or Y prime.

2. Originally Posted by Fyou88
Consider the expression: (x^2-y^2)^2/3+(2xy)^2/3=(x^2+y^2)^1/3.

Find the derivative or Y prime.
hi my friend, your equation is not clear, is it

$(x^2-y^2)^{2/3}+(2xy)^{2/3}=(x^2+y^2)^{1/3}$

or

$\frac{(x^2-y^2)^2}{3}+\frac{(2xy)^2}{3}=(x^2+y^2)^{1/3}$

or....

3. the 1st one.