(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] Variation of Parameters

1. The problem statement, all variables and given/known data

y^(4)-6y^(3)=-5sinx

3. The attempt at a solution

I factored this at x^3(x-6)=0

so my r values are 0,6

also using for y(p) Dcosx + Esinx

y=Ae^0 + Be^6x + Dcosx + Esinx ???

y' =6Be^6x -Dsinx + Ecosx

y'' =36Be^6x-Dcosx - Esinx

y''' =216Be^6x + Dsinx - Ecosx

y'''' =1296Be^6x +Dcosx + Esinx

(1296Be^6x +Dcosx + Esinx) - 6(216Be^6x + Dsinx - Ecosx)=-5sinx

is this the correct way to set up this problem?

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# Homework Help: Variation of Parameters

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