Question

If $x^y=e^{x-y},$ then $\frac{dy}{dx}$ is equal to

• A. $\frac{y}{(1+\log x{)}^2}$
• B. $\frac{x}{(1+\log x{)}^2}$
• C. $\frac{\log x}{(1+\log x{)}^2}$
• D. none of these.

Answer 1

Answer: (C)

Correct answer is (c) $\frac{\log x}{(1+\log x{)}^2}$