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Homework Help: Linear Differential Equations

  1. Apr 19, 2010 #1
    1. Find all real solutions: (dx/dt)-2x=cos(3t)

    2. Relevant equations

    3. I really don't know where to start here. Any advice to get me on my feet would be appreciated.
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Apr 19, 2010 #2


    Staff: Mentor

    Try to find an integrating factor.
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