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Homework Help: Method of undetermined coefficients

  1. Mar 7, 2010 #1
    1. The problem statement, all variables and given/known data
    http://edugen.wiley.com/edugen/courses/crs3098/rc/boyce3346c07/math/math1074.gif

    solve using the method of undetermined coefficients

    2. Relevant equations
    v(t)=a*t*e^-t + be^-t + ct + d


    3. The attempt at a solution
    what i could do is that i replaced v(t) for x in the equation and got the following
    Aa=-a
    Ab=a-b-(1,0)
    Ac=-(0,1)
    Ad=c

    now im not sure how to continue from here i was told that vector a = (alpha, alpha)

    to plug this in into the Ab equation so it ends up like this

    (A+I)b=(alpha -1, alpha)

    but that is giving me that 1 = 0 and im stuck there
    any help is appreciated
     
  2. jcsd
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