MathDB
f(f(x) + y)f(x) = f(xy + 1)

Source: IMOC 2020 A2

August 31, 2020
functional equationalgebraIMOC

Problem Statement

Find all f:R+→R+f:R^+ \rightarrow R^+ such that f(f(x)+y)f(x)=f(xy+1)  ∀x,y∈R+f(f(x) + y)f(x) = f(xy + 1)\ \ \forall x, y \in R^+
@below: https://artofproblemsolving.com/community/c6h2254883_2020_imoc_problems
Feel free to start individual threads for the problems as usual
Back to ProblemsView on AoPS