Sum of n terms of Geometric Progression Sequence | GP Series

Sum of N term of GP Suppose a, ar, ar², ar³,……ar^n-1 is the given Geometric Progression. Then the sum of n terms of GP is given by: Sn = a+ar+ar²+ ar³+…+ar^n-1 The formula to find sum of n terms of GP is: Sn = a[(r^n-1)/(r-1)] if r ≠ 1