Ako funkcija fff zadovoljava uvjete
(a) f(1)=1f(1) = 1f(1)=1,
(b) f(x+y)=f(x)+f(y),∀x,y∈Rf(x + y) = f(x) + f(y), \quad \forall x, y \in \mathbf{R}f(x+y)=f(x)+f(y),∀x,y∈R,
(c) f(1x)=f(x)x2,∀x∈R,x≠0f\left(\frac{1}{x}\right) = \frac{f(x)}{x^2}, \quad \forall x \in \mathbf{R}, \quad x \neq 0f(x1)=x2f(x),∀x∈R,x=0,
koliko je f(1996)f(\sqrt{1996})f(1996)?