F-2 (8.5 Points): Use VoP (4.5 Pts) and another method (4.0 Pts) to find the GS of \(x^2 y'' + xy' + 4y = \cos(2 \ln x) + \sin(2 \ln x)\) \(\forall x > 0\)
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We assume the particular solution has the form y_p = A*cos(2lnx) + B*sin(2lnx), where A and B are constants to be determined. Show more…
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