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Help please! directional derivative problem :S

  1. Aug 22, 2006 #1

    I am confused in as how to do this question :S.... any help, pointers etc. would be great.



    sarah :)
  2. jcsd
  3. Aug 22, 2006 #2

    Tom Mattson

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    Please show how you started and where you got stuck. Thanks.
  4. Aug 22, 2006 #3
    will post it later, though i may be on the verge of a breakthrough! :D
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