Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ Rajasthan TGT 2015 Q.Integrating factor of 3 dy x(x 1) (x 2)y x (2x 1) dx − = − + − − = − + − − = − + − − = − + − is A3 x 1 x − B2 x x 1 − C2 x 1 x − D3 x 2x 1 − Show answer Correct answer: 2 x 1 x −