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Homework Help: Viete's relations

  1. Apr 9, 2010 #1
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution I'm having trouble with number three. I know Viete's relations are X1+X2+X3, X1X2+X1X3+X2X3, and x1x2x3 for a cubic equation.
     

    Attached Files:

  2. jcsd
  3. Apr 9, 2010 #2
    A symmetric polynomial doesn't change after any permutation.
     
  4. Apr 9, 2010 #3
    correct, but how do i show that?
     
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