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Second Derivative

  1. Jul 22, 2011 #1
    Second Derivative

    1. The problem statement, all variables and given/known data

    f(x) = sin (2x)^1/2 find the f"(x).


    2. Relevant equations



    3. The attempt at a solution

    I dont know hw to do it...
     
  2. jcsd
  3. Jul 22, 2011 #2
    Re: Second Derivative

    How about the chain rule?
     
  4. Jul 22, 2011 #3
    Re: Second Derivative

    Why not start by showing us what you do know?

    At least pretend we have,
    g(w) = w^(1/2).
    How would you find the derivative?
    The second derivative?

    How have you been taught the chain rule? Can you show us a simpler example you've worked?

    Also, read
    https://www.physicsforums.com/showthread.php?t=414380
    particularly the 2nd and 4th paragraphs underneath Homework Help.
     
    Last edited: Jul 22, 2011
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