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Homework Help: Problem with gradient vector, gradient, and directional derivative, etc.

  1. Jul 2, 2011 #1
    Delete post i get no HELP

    Delete post. It's useless. I get no help!
    Last edited: Jul 2, 2011
  2. jcsd
  3. Jul 2, 2011 #2


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    What does the answer to part (b) mean?
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