Math Problem Statement
Tìm tất cả các hàm số f : R → R thoả mãn: a) f(x+y) = f(x)+f(y) ∀x,y ∈ R b) f(x) ≥ 0 ∀x>0
Solution
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Math Problem Analysis
Mathematical Concepts
Functional equations
Cauchy's functional equation
Linear functions
Formulas
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Theorems
Cauchy's functional equation solutions
Suitable Grade Level
Advanced high school and college