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Homework Help: Finding length of the curve, did i mess up simpifying?

  1. Oct 4, 2005 #1
    Hello everyone, i'm suppose to find the length of the curve. But the book got a different answer, anyone see my problem? Here is the picture and my work:
    http://img216.imageshack.us/img216/7900/urnt8jd.jpg [Broken]
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Oct 4, 2005 #2


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    Doesn't (2t)² = 4t²?
  4. Oct 4, 2005 #3
    ahh ur right my bad..
    so i have sqrt(4t^2 + 25t^8)
    Will that simpify too:
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