Question

Choose the correct alternative:

The integrating factor of `("d"^2y)/("d"x^2) - y` = e^x, is e^–x, then its solution is

Options

• ye^–x = x + c

• ye^x = x + c

• ye^x = 2x + c

• ye^–x = 2x + c

Answer 1

ye^–x = x + c