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Omni-MATH / Find all functions fcolon mathbbR rightarrow mathbbR such that for all x,y∈R, xf(x+f(y))=(y−x)f(f(x)). · Discussion

Discussing Find all functions fcolon mathbb{R} rightarrow mathbb{R} such that for all x,y∈R, xf(x+f(y))=(y−x)f(f(x)). · Omni-MATH

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