Prove, by mathematical induction, that for all positive integers n,
[1 / (1x3)] + [1 / (2x4)] + [1 / (3x5)] + ... + 1 / [n(n+2)]
= 3/4 - {(2n+3) / [2(n+1)(n+2)]}
F.4 mathematical induction
2009-09-06 7:26 pm
回答 (1)
2009-09-06 8:08 pm
收錄日期: 2021-04-13 16:49:45
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