Question 61
Find all pairs $(a, b)$ of positive integers such that
$$
11 a b \leq a^{3}-b^{3} \leq 12 a b
$$
$$
11 a b \leq a^{3}-b^{3} \leq 12 a b
$$
MathNet 2022-part-03 — 197 problems (EN–VI) Question 61
Math Olympiad Vault · MathNet 2022-part-03 — 197 problems (EN–VI)