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Help with simple integral

  1. Oct 31, 2011 #1
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Oct 31, 2011 #2


    Staff: Mentor

    Because it's quite a bit simpler to integrate t sin(at) than to integrate (6 - 3t)sin(at). In both cases you need to use integration by parts, but the simpler integrand makes the process easier.
    Last edited by a moderator: May 5, 2017
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