If the sum of n terms of an ap is 3n2 n July 8, 2019 16 32 64 128 If the sum of first n terms of an ap is 3n2 n If the sum of n terms of an ap is 2n 3n2 the nth term would be Arithmetic progression sum of n terms How to find the sum of arithmetic progression The sum of infinite series Finding the sum of an infinite arithmetic series
