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Complex number-proving

  1. Oct 12, 2014 #1
    Using the triangle inequality of complex numbers, prove that lz-wl>=llzl-lwll

    Any1 know how to prove this? appreciate ur help!
     
  2. jcsd
  3. Oct 12, 2014 #2

    Erland

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    Science Advisor

    Hint: Write z = (z-w)+w and apply the triangle inequality to this sum.
     
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