Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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.


    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. (:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook