PUMaC 2008 · 代数（B 组） · 第 8 题
PUMaC 2008 — Algebra (Division B) — Problem 8
题目详情
- (5 points) Let H = for all positive integers k . Find an closed-form expression for H k k i =1 k =1 i in terms of n and H . n
解析
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Original Explanation
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