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计算(1-(2²分之1))(1-(3²分之1))(1-(4²分之1))···(1-(2013²分之1))
人气:266 ℃ 时间:2020-01-26 09:57:03
解答
(1-1/2²)(1-1/3²)(1-1/4²)...(1-1/2013²)=(1+1/2)(1-1/2)(1+1/3)(1-1/3)(1+1/4)(1-1/4)...(1+1/2013)(1-1/2013)=(3/2)(1/2)(4/3)(2/3)(5/4)(3/4)...(2014/2013)(2012/2013)=[(3/2)(4/3)(5/4)......
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