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Homework Help: Derivative of inverse trig functions.

  1. Oct 15, 2011 #1
    1. The problem statement, all variables and given/known data
    Find the derivative:

    2. Relevant equations


    3. The attempt at a solution

    I have an example to follow, but I dont know how step 1. became step 2.?...or more exactly the last part under the radical? (1-4t^6) instead of just -1 ???


  2. jcsd
  3. Oct 15, 2011 #2
    Nevermind... I see it now.
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