I need your help to solve the following differential equations:
1) y''' - y' = e^x
and
2) y'' - xy' = sinx
Thank you,
In both cases substitute v = y'. The first DE becomes second order with constant coefficients. The second DE then gets done using the integrating factor method. Both are in your class notes and textbook.
Then solve for v. And hence solve for y.
If you need more help, please show all that you've done and say where you get stuck.