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Undetermined coefficients

  1. Oct 18, 2011 #1
    1. The problem statement, all variables and given/known data
    x(t)^double prime-x(t)=tsint


    2. Relevant equations



    3. The attempt at a solution

    in this case would I start this as x=t(A(2)+A(1))sint or do i also have to use the cos which makes it
    x=t(A(2)+A(1))sint+t(B(2)+B(1))cost?
     
  2. jcsd
  3. Oct 18, 2011 #2

    ehild

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    See attachment.

    ehild
     

    Attached Files:

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