Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ UP PCS (Pre) 2008 Q.In the following differential equation non– linear differential -equation is A2 d y dy x y 0 dx + + = B2 d y dy xy 0 dx + + = C2 d y dy xy 0 dx + + = D2 d y dy x x y 0 dx + + + = Show answer Correct answer: 2 d y dy xy 0 dx + + =