標題: [學科討論] series問題 [打印本頁]

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作者: ooscar    時間: 2017-12-19 04:37 PM     標題: series問題


可否解答紅框內容.thx

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作者: LAnews    時間: 2017-12-19 09:40 PM

Sum = (1/1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) +  (1/4 - 1/5) + ... + (1/(n+1) - 1/(n+2))

Sum = 1 - 1/(n+2)

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作者: KFC123451    時間: 2018-2-21 01:03 PM

interesting post

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