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Chain rule question

  1. Sep 29, 2008 #1
    1. The problem statement, all variables and given/known data


    derivative of esec(x)



    3. The attempt at a solution


    u = sec(x)
    y = eu

    du/dx = tan(x)sec(x)
    dy/du = eu

    dy/dx = dy/du * du/dx
    = esec(x)tan(x)sec(x)
     
  2. jcsd
  3. Sep 29, 2008 #2

    Hootenanny

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    Looks good to me :approve:
     
  4. Sep 29, 2008 #3
    thanks
     
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