A = (2001/2000^2+1) +(2001/2000^2+2)+......+(2001/2000^2+2000) CMR 1<A^2<4

A = (2001/2000^2+1) +(2001/2000^2+2)+......+(2001/2000^2+2000) CMR 1<A^2<4
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