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Homework Help: Differentiating t/(1+t^2)^(1/2)

  1. Oct 1, 2007 #1
    d/dx[t/(1+t^2)^(1/2)]

    The answer say 1/(1+t^2)^(3/2)

    I can tget that for the life of me. Used product rule and I cant seem to simplify it I come up with

    2/(1+t^2)^(3/2) Where does the 2 go? This is for a principal unit vector problem so a quick solution is all i need. thanks
     
  2. jcsd
  3. Oct 1, 2007 #2
    nevermind i got it forgot about the 2 on the bottom doh.
     
  4. Oct 1, 2007 #3

    arildno

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    I'd say the answer was 0, but that's just my opinion..
     
  5. Oct 2, 2007 #4

    Gib Z

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    lol...
     
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