Inequality with Max. and Min.value.

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SUMMARY

The discussion focuses on finding the maximum and minimum values of the expression (x^3 + 1)(y^3 + 1) under the constraint x + y = 1, where x and y are real numbers. Participants noted that while the minimum value is straightforward to determine, the maximum value requires solving a degree 5 polynomial, which can be complex without calculus. The conversation highlights the challenges of optimizing this expression without calculus techniques.

PREREQUISITES
  • Understanding of algebraic expressions and polynomial functions
  • Familiarity with the concept of constraints in optimization problems
  • Basic knowledge of real numbers and their properties
  • Experience with polynomial degree and its implications in solving equations
NEXT STEPS
  • Research methods for solving polynomial equations of degree 5
  • Explore optimization techniques without calculus, such as the AM-GM inequality
  • Study the properties of symmetric functions in algebra
  • Learn about the relationship between constraints and optimization in real analysis
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Students studying algebra, mathematicians interested in optimization problems, and educators looking for non-calculus methods to teach polynomial maximization.

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Homework Statement



If [tex]x,y\in R[/tex] and [tex]x+y=1[/tex].then find max. and Min. value of [tex](x^3+1)(y^3+1)[/tex] (Without using calculus)

Homework Equations


here [tex]x+y=1[/tex] and [tex](x^3+1)(y^3+1)[/tex]


The Attempt at a Solution



I have done using Calculus...
 
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So what exactly is your problem?
The Minimum value is easy to argue.
I wonder how you found the maximum value using calculus because that involves solving a degree 5 polynomial.
You could post your answers then we can discuss a bit more.
 

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