Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2019-part-04 — 184 problems (EN–VI) Question 44

Math Olympiad Vault · MathNet 2019-part-04 — 184 problems (EN–VI)

Question 44

Determine all continuous functions $f: \mathbb{R}_{+}^{*} \rightarrow \mathbb{R}$ that satisfy the relation
$$
f\left(\frac{x}{y}\right)=\frac{f(x)}{y}-\frac{f(y)}{x}, \quad \forall x, y \in \mathbb{R}_{+}^{*}
$$