Math Problem Statement

. Tìm tất cả các hàm f : R → R thoả mãn f(f(x)2 + f(y)) = xf(x) +y ∀x,y ∈ R

Solution

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Math Problem Analysis

Mathematical Concepts

Functional equations
Constant functions
Injective functions

Formulas

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Theorems

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Suitable Grade Level

Advanced Mathematics