1. The problem statement, all variables and given/known data solve the following equation using method of intergrating factors: 2. Relevant equations dy/dx = y + cosx - sinx 3. The attempt at a solution i think i have to get it in the form dy/dx + r(x)y = f(x) but i can't see how, if i multiply or divide by a factor i wont have dy/dx on its own. and how do i identify whats f(x) and r(x)? i also tried dy + (-y -cosx +sinx)dx = 0 and then just finding a factor to make it an exact differntial, but im not sure how i determine the factor.