设S1=1+1/(1^2)+1/(2^2),S2=1+1/(2^2)+1/(3^2),S3=1+1/(3^2)+1/(4^2)......Sn=1+1/[n^2+1/(n+1)^2].设S=√S

日期:2012-06-16 09:53:42 人气:1

设S1=1+1/(1^2)+1/(2^2),S2=1+1/(2^2)+1/(3^2),S3=1+1/(3^2)+1/(4^2)......Sn=1+1/[n^2+1/(n+1)^2].设S=√S

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