Asked by ijat

Solve
x^3y^'''+5x^2y^''+7xy^'+8y=t+e^(-t)
Answered by Steve
well, the solution of the homogeneous equations is

y = c1 cos(2lnx) + c2 sin(2lnx) + c3/x^2

Not sure what to do with the t's, though.
Answered by ijat
steve how u got that solution?
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