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Differential Equations
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OpenStudy (anonymous):
Steady state solution 4y''+12y'+9y=225-75sin(3t) I'm not sure what to do about the 225, I'd be able to solve it if it was just the sine term on the right.
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OpenStudy (turingtest):
Just add another constant in your guess for the particular if you are using undefined variables.
OpenStudy (anonymous):
So it would be in the form \[K+a*\cos(3t)+b*\sin(3t)\]?
OpenStudy (turingtest):
right
OpenStudy (anonymous):
Cool, I got the solution. Thanks!
OpenStudy (turingtest):
welcome :D
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