The question: Find all functions f defined over R satisfying the equality: ∀x,y∈R f(y−f(x))=f(x2002−y)−2001yf(x)
How do I approach (any hints) to solve the problem above?
How to find limh→0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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