If sum of n terms of an ap is 2n2 5n July 8, 2019 16 32 64 128 If sum of n terms of an ap is 2n2 5n find 4th term If sum of n terms of an ap is 2n2 5n then nth term is Arithmetic progression sum of n terms Finding the sum of an infinite arithmetic series How to find sum of arithmetic progression Find the sum of infinite series
