Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Derivative function. Is the book wrong?

  1. Nov 2, 2013 #1
    Differentiate the following with a positive index:
    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


    User Avatar
    Science Advisor

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


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Your book is wrong.
  5. Nov 2, 2013 #4
    Cool thanks, just wanted to check.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook