Mht CetDifferentiationMHT CET 2019 2nd May Evening ShiftMCQ+2 / -02019If $x^y=e^{x-y}$, then $\frac{d y}{d x}$ at $x=1$ is ...........A$e$B1C0D$-$1Check AnswerClear SelectionReveal AnswerShow Explanation