find the general solution.. y'' + 4y' = sin3x
What method you want to prefer??
What are you doing @mathslover ??
is it applicable if we use modification?
Modification??
I was going to type something diff, u may carry on..
modifraction. sorry.
Well I don't know about this.. Do you know about method of undetermined coefficients??
is that a differential equation ??
Yes.. If you want to help then go ahead..
@waterineyes yes. and it's a non-homo right? @reginald yes.
K i am going to type my views on it wait
i think that is a second linear ODE ..right ?
Where is @unkleRhaukus He can help you in a better way..
First find the general part of the solution by solving y" + 4y = 0 ----> y" = -4y
@reginald yes. it is...
ok wait..i'll try
Yes it is non homogeneous but we can solve it by using that method..
let me confirm about the answer : y = A*sin2x + B*cos2x - (1/5)*sin3x is this the answer ?
i think that's just yp
@reginald kk. thanks! :) @waterineyes can you show me how? XD @mathslover idk. that's why i'm asking here ( ̄□ ̄;)
hmn k ... what r u getting the general part of the solution ?
By solving this one :y" + 4y = 0 ----> y" = -4y ?
yes. the general soln.. since there are no particulars.
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