计算:1/1×6+1/6×11+1/11×16+······+1/2006×2011(写明过程理由答案)

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计算:1/1×6+1/6×11+1/11×16+······+1/2006×2011(写明过程理由答案)计算:1/1×6+1/6×11+1/11×16+······+1/2006×2011(写明过程理

计算:1/1×6+1/6×11+1/11×16+······+1/2006×2011(写明过程理由答案)
计算:1/1×6+1/6×11+1/11×16+······+1/2006×2011(写明过程理由答案)

计算:1/1×6+1/6×11+1/11×16+······+1/2006×2011(写明过程理由答案)
1/1×6+1/6×11+1/11×16+······+1/2006×2011
=1/5[(1-1/6)+(1/6-1/11)+…+(1/2006-1/2011)]
=1/5*(1-1/2011)
=402/2011