Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ KVS TGT DEC 2017 Q.The differential equation y = A cos αx + B sin αx, where A and B are constant- A2 d y y 0 dx B2 d y y 0 dx C2 d y y 0 dx D2 d y y 0 dx Show answer Correct answer: 2 d y y 0 dx