Točno
Sept. 5, 2024, 2 p.m. (1 week, 2 days)

Let \mathbb{Q}_{>0} denote the set of all positive rational numbers. Determine all functions f:\mathbb{Q}_{>0}\to \mathbb{Q}_{>0} satisfying f(x^2f(y)^2)=f(x)^2f(y)for all x,y\in\mathbb{Q}_{>0}

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