PUMaC 2011 · 个人决赛（B 组） · 第 2 题
PUMaC 2011 — Individual Finals (Division B) — Problem 2
题目详情
- Prove for irrational number α and positive integer n that ( ) ( ) √ √ 1 /n 1 /n 2 2 α + α − 1 + α − α − 1 is irrational.
解析
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Original Explanation
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