My Differential Equations final is tomorrow. My teacher says there will most likely be no homogeneous equations on it. Out of 9 questions we get to pick 7 of them. I know there will be one series equation solving for the first four terms, a spring question, a series circuit problem, a simultaneous equations problem, and a few initial value problems.

I studied for a couple of hours yesterday, and now I'm studying all day today. Does anyone have any tips for me? I was thinking about really focusing on Laplace transformations, and possibly attempting to use it for as many problems as I can - I enjoy that technique. Any suggestions on which problems I should skip?

I guess my biggest question is: How do I know which problem solving technique to use on a given problem? If it is a first ODE it should be cake, but what about second ODEs?

Thanks for the help guys!