Math Chapter Wise Exponential And Logarithmic Series English MCQ PGT 2010 Q.The sum of the series 2 2 2 2 2 2 1.2 2.3 3.4... 1! 2! 3! + + + + + + + + + + + + is A27e B24e C28e DNone of these Show answer Correct answer: 27e