A teacher who mumbles proofs to himself without explaining them to the rest of the class coupled with A First Course In Differential Equations with Modeling Applications 8th edition by Dennis G. Zill are my biggest foes in conquering Diff EQ's.(adsbygoogle = window.adsbygoogle || []).push({});

Right now I am stuck on Boundary-Value Problems.

For example:

Find an interval centered about x = 0 for which the given IVP has a unique solution:

10.y" + (tanx)y = e^x, y(0) = 1, y"(0) = 0

So naturally, I need to know what y is, right? How do I find that? All the examples in the book simply say "blah blah is a solution to blah blah blah. Verify this." without explaining how they got it in the first place... Jesus Christ! They even say that I NEED TO KNOW how to solve these things, but never show me!

EDIT:

Wait... is this the thing where I go [tex]e^{ \int P(x) dx}[/tex]? I still blame the book for not being clear...

EDIT 2:

No... not it's not... I am clueless. Especially since the NEXT section in the book goes into reduction of order, that means that I SHOULD know how to do this...

EDIT 3:

Jesus Christ... I just figured out I posted this on the wrong forum, too... someone just shoot me...

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# Homework Help: Diff EQ's are killing me

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