Can someone please explain the idea of varation of parameters as it relates to solving first and second order linear equations, because Dennis Zill does not do a very good job of it?
I wish I had the time to explain it to you better, but I have other things that require my time right now. However, you can find a write up of the variation of parameters technique in my DE tutorial. In that post, I go through the process behind VOP and I give a simple example.
I hope it helps!