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NO NEED to calculate every term, notice that Tn = 2n-1, thus Sn = 1 + 3 + 5 + ...+ 2n-1= (1+2n-1) * n / 2 = n*n.
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Summing the N series
You are viewing a single comment's thread. Return to all comments →
NO NEED to calculate every term, notice that Tn = 2n-1, thus Sn = 1 + 3 + 5 + ...+ 2n-1= (1+2n-1) * n / 2 = n*n.