
#1
Oct805, 01:00 PM

P: 83

Very simple in writing, but hard to solve:
[tex] x*\frac{dy}{dx}=(y^2y x^2)/(y^2+x^2)[/tex] 



#2
Oct805, 01:05 PM

P: 669

Alex 



#3
Oct905, 03:41 PM

Sci Advisor
HW Helper
P: 1,593

[tex](y^2yx^2)dx(xy^2+x^3)dy=0[/tex] but are unable to proceed. It's not exact, can't make it exact, and can't come up with any differentials by inspection. 


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