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Homework Help: Parametric equations

  1. May 24, 2010 #1
    trochoid for d<r
    integrating this on 0,2pi = 4x[0,pi/2] im getting 2r^2pi-8rd+d^2pi text is just showing 2r^2pi+d^2pi
  2. jcsd
  3. May 24, 2010 #2


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    Integrating what? Tell us what you are trying to calculate.
  4. May 25, 2010 #3
  5. May 25, 2010 #4


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    Do you expect us to spend time on your problems when you don't bother putting any effort into your problem statement?

    How do you expect us to point out your mistake if you don't even bother to write down the integral, including steps, you tried to compute.
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