Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ UP PCS (Pre) 1997 Q.A singular solution of the differential equation: (()) 2 4 2 y y px x p, − = − = is A2 x y 0 + = B2 y x 0 + = C2 4x y 0 + = D2 4y x 0 + = Show answer Correct answer: 2 4x y 0 + =