Viete's Relations: Solving Cubic Equations

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SUMMARY

This discussion focuses on Viete's relations for cubic equations, specifically the relationships X1 + X2 + X3, X1X2 + X1X3 + X2X3, and X1X2X3. The participant seeks clarification on demonstrating the invariance of symmetric polynomials under permutation. Understanding these relations is crucial for solving cubic equations effectively.

PREREQUISITES
  • Understanding of cubic equations and their roots
  • Familiarity with symmetric polynomials
  • Basic knowledge of polynomial algebra
  • Experience with mathematical proofs and demonstrations
NEXT STEPS
  • Study the properties of symmetric polynomials in detail
  • Learn how to apply Viete's relations in solving cubic equations
  • Explore mathematical proof techniques for demonstrating polynomial invariance
  • Investigate advanced topics in algebra related to polynomial roots
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Mathematics students, educators, and anyone interested in algebraic theory, particularly those focusing on polynomial equations and their properties.

halvizo1031
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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.
 

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A symmetric polynomial doesn't change after any permutation.
 
correct, but how do i show that?
 

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