Math Chapter Wise Exponential And Logarithmic Series English MCQ PGT 2009 Q.Sum of the series 13 + 23 + 33 +…n3 is A2 (1) 2 + n n B(1)(2) 2 + + n n n C2 (1) 2 + n n DNone of these Show answer Correct answer: 2 (1) 2 + n n