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Homework Help: 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
  2. jcsd
  3. Oct 18, 2011 #2


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    See attachment.


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