Math Problem Statement

Tìm tất cả các hàm số f : Q → R thoả mãn f(x +y) = f(x)+f(y) ∀x,y ∈ Q.

Solution

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Math Problem Analysis

Mathematical Concepts

Functional equations
Cauchy functional equation

Formulas

-

Theorems

Cauchy's functional equation

Suitable Grade Level

Advanced High School