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Evaluate sum to n terms Sigma k=1 to n 2 (n-1) . k^2

Evaluate  sum to n terms
 
Sigma k=1 to n   2(n-1) . k^2

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
5 years ago
2^(n-1) *(n(n+1)(2n+1)./6n)

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