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Homework Help: Abstract Algebra

  1. Mar 21, 2010 #1
    1. The problem statement, all variables and given/known data
    This is part of the proof of Schwarz inequity.
    Please help me understand the following equation , i think it should not be a equal sign instead it should be greater or equal to.

    attachment.php?attachmentid=24531&stc=1&d=1269158428.jpg

    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Mar 21, 2010 #2
    will someone clear my doubt ? thanks in advance
     
  4. Mar 21, 2010 #3
    No - the equals is correct. The norm is taken by multiplying out using the dot product (so a x b = aTb).
     
  5. Mar 21, 2010 #4
    Thanks mrbohn. (:
     
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