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Homework Help: 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


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    Staff Emeritus
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    Gold Member

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