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Im currently in a Calc II class at CWRU. I missed a day of class covering Second Order DE's. This topic is not covered in the textbook. Could someone direct me towards a introduction or tutorial to this topic. Here is an example of the type we are covering. 4y'+ 4y" + y = 0 ; y(0)= -12 , y'(0)= 1

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up vote 7 down vote accepted

Paul's Online Math Notes is good.

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You might also try some of my notes, in particular Second Order Linear Equations and Constant-Coefficient Equations

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MIT Open lectures would have some nice notes

Look here chapter 33, or here Lecture 9, or do a search on your own.

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Here is also a pretty good video lecturer's on various topics.




Hope this helps out.

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