Partial defferentiation

[anil86]

I got x = (u² - v²) / u
y = (v² - u²) / v

I differentiated them w.r.t u & v respectively & solved the given equation but I'm not getting the answer which is 0.

Please view attachment for question!!!

 

[Romsek]

I got x = (u² - v²) / u
y = (v² - u²) / v

I differentiated them w.r.t u & v respectively & solved the given equation but I'm not getting the answer which is 0.

Please view attachment for question!!!

attachment is illegible. Is it so hard to type these things in here? After all you expect us to type out the answer.