Statement-1: The sum of the series 1+(1+2+4)+(4+6+9)+(9+12+16)+. . . . .+ (361+380+400) is 8000 .Statement-2: ∑↙{k=1}↖{n} (k^3-(k-1)^3) =n^3, for any natural number {
}.

Question

Statement-1: The sum of the series 1+(1+2+4)+(4+6+9)+(9+12+16)+. . . . .+ (361+380+400) is 8000 .Statement-2: ∑↙{k=1}↖{n} (k^3-(k-1)^3) =n^3, for any natural number  {
}.

Examsnet · Accepted Answer

Correct Answer is : Statement- 1 is true, Statement- 2 is true; Statement- 2 is a correct explanation for Statement-1.

AIEEE 2012 Solved Paper