Math Chapter Wise Ordinary And Partial Differential Equations, Integral Equations And Calculus Of Variations English MCQ DSSSB TGT (SECTION-B) 28 DEC 2014 Q.If x y x y then dy dx is– Ax/y By/x C1 log x/1 log y Dx 1 log y Show answer Correct answer: 1 log x/1 log y