Math Problem Statement

On considère la fonction f définie sur 6 ; 6 par   2 f x x x     0,25 2 4. 1) Calculer f x ' .   2) Etudier le signe de f x ' .   3) Dresser le tableau de variation de f sur 6 ; 6 .

Solution

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Math Problem Analysis

Mathematical Concepts

Differentiation
Quadratic Functions
Monotonicity
Critical Points

Formulas

f(x) = 0.25x² + 2x + 4
f'(x) = 0.5x + 2

Theorems

Sign of the derivative
Critical points and extrema
Monotonicity criteria

Suitable Grade Level

Grades 10-12