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OpenStudy (anonymous):
How to find complimentary sol'n of 2y'+18y=6tan(3t)?
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OpenStudy (anonymous):
Are you sure that this is the question? This has a very complicated answer (see attached)
OpenStudy (anonymous):
Yes, example 1 from http://tutorial.math.lamar.edu/Classes/DE/VariationofParameters.aspx Is it error?
OpenStudy (anonymous):
This is not the question. 2y''+18y=6tan(3t), TY
OpenStudy (anonymous):
On website, y'' is shown as y with bold " ' ". Is this another way of writing y prime prime?
OpenStudy (anonymous):
The typeface on the website is a bit misleading. I tried zooming in, and even then it still looks like a single prime. From the complementary solution, since it contains sin/cos, it makes sense that the ODE has the form y'' + y.
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OpenStudy (anonymous):
that's good sense.
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