Question

what is the formula for Sn of gp​

Answer 1

Answer:

The nth term of a GP series is Tn = arn-1, where a = first term and r = common ratio = Tn/Tn-1) . The sum of infinite terms of a GP series S∞= a/(1-r) where 0< r<1.

Answer 2

Answer:

This is the answer for your question.