Question

Pls answer this question with step explanation
The sum of n terms of the series 1+ (1+1/3) + (1+1/3+1/3^2) + … is
a) (3/2) (1-3^-n)
b) (3/2) [n-(1/2) (1-3^-n)
c) both
d) none

Answer 1

Answer:

answer b is correct okokokokokokokokokokokokok