Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ PGT 2000 Q.Solve y (a – z) dx+ x (a – z) dy + xydz = 0? Axy = c(a – z) Bxy = ac Cx = c(a – z) Dy = c(z – a) Show answer Correct answer: xy = c(a – z)