Math Problem Statement

Soit f une fonction continue sur un segment [ab] tels que: [a;b] inclus dans f([a; b]). ✔Montrer qu'il existe au moins c [a; b] tels que: f(c)=c.

Solution

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Math Problem Analysis

Mathematical Concepts

Continuity of Functions
Fixed Points
Intermediate Value Theorem

Formulas

g(x) = f(x) - x
Bolzano's Fixed Point Theorem

Theorems

Intermediate Value Theorem
Bolzano's Fixed Point Theorem

Suitable Grade Level

Undergraduate Mathematics (University Level)