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Derivative function. Is the book wrong?

  1. Nov 2, 2013 #1
    Differentiate the following with a positive index:
    [itex]\frac{2}{\sqrt[3]{x}}[/itex]
    What the book says:
    [itex]\frac{-2}{3x^ \frac{2}{3}}[/itex]
    But shouldn't it be:
    [itex]\frac{-2}{3x^ \frac{4}{3}}[/itex]
    I just wan't to know if I'm doing something wrong, thanks :).
     
    Last edited: Nov 2, 2013
  2. jcsd
  3. Nov 2, 2013 #2

    Ibix

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    I agree with you.
     
  4. Nov 2, 2013 #3

    arildno

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    Dearly Missed

    Your book is wrong.
     
  5. Nov 2, 2013 #4
    Cool thanks, just wanted to check.
     
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