- #1
skrat
- 748
- 8
Homework Statement
Solve ##y''+y-sinx=0##.
Homework Equations
The Attempt at a Solution
I am actually working on variational problems which brought me to this differential equation. I thought that taking ##y=Asinx+Bcosx## would solve it, yet it does nothing useful.
In other words, I tried everything I could remember. Could somebody help me?