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Homework Help: Prove of disprove a statement

  1. Feb 19, 2012 #1
    1. The problem statement, all variables and given/known data
    I would like to ask part (b)

    attachment.php?attachmentid=44138&stc=1&d=1329703769.jpg


    2. Relevant equations



    3. The attempt at a solution
    It seems my proof is not concrete enough. Can anyone help me to improve my proof?

    attachment.php?attachmentid=44139&stc=1&d=1329703769.jpg
     

    Attached Files:

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    • prove.jpg
      prove.jpg
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  2. jcsd
  3. Feb 19, 2012 #2

    ehild

    User Avatar
    Homework Helper

    Hi athrun200,

    The coefficients of both √a and √b have to be -4 in the second line.


    ehild
     
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