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OpenStudy (idealist10):
Find a particular solution of y"+2y'+y=8x^2*cosx-4xsinx.
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OpenStudy (idealist10):
@jigglypuff314 @hartnn @zepdrix @Jaynator495 @ParthKohli @Michele_Laino
OpenStudy (idealist10):
Is the initial guess \[y _{p}=(Ax^2+Bx+C)cosx+(Dx^2+Ex+F)sinx\] right for this problem?
OpenStudy (kainui):
Yeah totally, that's the kind of guess I would use.
OpenStudy (idealist10):
Yes! You're totally right! I messed up at the end since I was careless, but after I checked my work, I found my mistakes. Thank you so much for the help!
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