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
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