Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ UP PCS (Pre) 1994 Q.Which of the following differential equations is linear? A2 dy y x 1 dx B2 dy y sin x dx Cx dx x y e dy D2 3 dx y x y dy Show answer Correct answer: 2 3 dx y x y dy