Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ NVS PGT 2022 Q.Which of the following is a linear differential equation? A(y + x) y' + y = 1 B3y' + (x + 4) y = x2 + y'' Cy''' = cos (2y) D() 4 y y xy"' cosx e + + = Show answer Correct answer: () 4 y y xy"' cosx e + + =