Finding maximum and minimum value

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SUMMARY

The discussion focuses on finding the maximum and minimum values of the expression xz + xy - yz under the constraint x² + y² + z² = 1. The solution approach involves using Lagrange multipliers, a method for finding the local maxima and minima of a function subject to equality constraints. The original poster successfully completed the problem after receiving hints about this technique.

PREREQUISITES
  • Understanding of multivariable calculus
  • Familiarity with Lagrange multipliers
  • Knowledge of constraint optimization
  • Basic algebraic manipulation skills
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  • Study the method of Lagrange multipliers in detail
  • Practice solving optimization problems with multiple variables
  • Explore applications of constraint optimization in real-world scenarios
  • Review examples of maximum and minimum value problems in calculus
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Students studying calculus, mathematicians interested in optimization techniques, and anyone looking to enhance their problem-solving skills in multivariable functions.

rainwyz0706
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Homework Statement



We have x^2+y^2+z^2=1, and we want to find the maximum and minimum value of xz+xy-yz.

Homework Equations





The Attempt at a Solution


I've simplified the original problem to this point, but I'm not sure what to do next. Could anyone give me some hints? Any help is greatly appreciated!
 
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Thanks a lot! I finished it already:p
 

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