Find the sum to indicated number of terms in each of the geometric progressions in

x3, x5, x7, ... n terms (if x 1).

Given: x3, x5, x7, ... n terms


Sum of n terms of a G.P. is given by: (a: First term of G.P, r: common difference of G.P, n: Number of terms of the G.P)


First term of the Given G.P (a) = x3


Common difference of the given G.P(r) = = x2


Number of terms(n): n


Let the sum of n terms be s




∴ The sum of n terms of the given sequence is:


14