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计算:1/a-1+1/(a-1)(a-2)+1/(a-2)(a-3)+……+1/(a-2010)(a-2011)谢谢了,

学习时间:2026-10-10 02:06:23 阅读：1361

计算:1/a-1+1/(a-1)(a-2)+1/(a-2)(a-3)+……+1/(a-2010)(a-2011)谢谢了,

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哭泣的微笑

过时的砖头

2026-10-10 02:06:23

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1/a-1+1/(a-1)(a-2)+1/(a-2)(a-3)+……+1/(a-2010)(a-2011) =1/（a-1）+1/(a-2)-1/(a-1)+1/(a-3)-1/(a-2)+。。。+1/(a-2011)-1/(a-2010) =1/(a-2011)

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孤独的黑猫
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2026-10-10 02:06:23
1/a-1+1/(a-1)(a-2)+1/(a-2)(a-3)+……+1/(a-2010)(a-2011) =1/（a-1）+1/(a-2)-1/(a-1)+1/(a-3)-1/(a-2)+。。。+1/(a-2011)-1/(a-2010) =1/(a-2011)

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