Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2009-part-04 — 175 problems (EN–VI) Question 11

Math Olympiad Vault · MathNet 2009-part-04 — 175 problems (EN–VI)

Question 11

Find all even natural numbers $n$ for which $-53 \lt \frac{2009}{53-n} \lt 53-n$ holds.