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Homework Help: Powers of Trig Functions

  1. Mar 3, 2010 #1
    1. The problem statement, all variables and given/known data
    See attached image

    2. Relevant equations
    Power reducing Identy:
    cos^u = (1+Cos2u / 2)

    3. The attempt at a solution
    This is a problem that was done as an example (I know it is not complete it is missing the last integration step) but this is where I am getting stuck my question is where in this (3/2) coming from indicated in red in the image I cannot figure it out??? thanks in advance.

    Attached Files:

    • p1.JPG
      File size:
      13 KB
    Last edited: Mar 3, 2010
  2. jcsd
  3. Mar 3, 2010 #2
    There's a 1 on the left side of the integrand, and a 1/2 coming from the fraction on the right.

    1 + 1/2 = 3/2...
  4. Mar 3, 2010 #3
    stupid question the 1/2, does that not stay with the second equation why would you inocrporate it into the first also??
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