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Homework Help: Help please! directional derivative problem :S

  1. Aug 22, 2006 #1
    Hello,

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

    http://img87.imageshack.us/img87/637/picture4nd7.png [Broken]

    Thanks

    sarah :)
     
    Last edited by a moderator: May 2, 2017
  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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