計算 Σ(k=1 to ∞) (2k+1)/[k(k+1)(k+2)]
求最小正整數 m 使 Σ(k=m to ∞) (2k+1)/[k(k+1)(k+2)] < 1/10
收錄日期: 2021-04-23 23:28:39
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https://hk.answers.yahoo.com/question/index?qid=20130328000051KK00315