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Chain rule proof

  1. Aug 22, 2013 #1
    is this proof valid? I thought it out myself with some help from textbooks?

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    Last edited: Aug 22, 2013
  2. jcsd
  3. Aug 22, 2013 #2


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    Can you please upload a pdf instead, or type it out here? We don't all use M$ Office.
  4. Aug 22, 2013 #3
    pdf version

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    Last edited: Aug 22, 2013
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