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[SQRT(1)]+[SQRT(2)]+[SQRT(3)]+.......+[SQRT(2115)]=? WHERE SQRT MEANS SQUARE ROOT [SQRT(1)]+[SQRT(2)]+[SQRT(3)]+.......+[SQRT(2115)]=? WHERE SQRT MEANS SQUARE ROOT
if we see [sqrt(1)]=1[sqrt(2)]=1in fact for 1 its 1*(2^2-1^2)for 2 2*(3^2-2^2)similarly [root(2115)]=45so sigma n((n+1)^2-n^2) from 1 to 44then we take t=45*(2115-2045+1)(2n+1(n+1)(n)/3+(n+1)(n)/2 put n=44 then add with tget the answer
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