Question

The integrating factor of differential equation $\frac{dy}{dx}+y=\frac{1+y}{x}$ is:

• A. $\frac{ex}{x}$
• B. $\frac{x}{ex}$
• C. $xe^x$
• D. $e^x$

Answer 1

Answer: (A)

$\frac{ex}{x}$

Answer 2

The correct option is (A): $\frac{ex}{x}$