Question

what is formula of calculate ( GP ) geometric progression​

Answer 1

Answer:

A geometric progression is a sequence in which each term is derived by multiplying or dividing the preceding term by a fixed number called the common ratio. ... The nth term of a GP series is Tn = arn-1, where a = first term and r = common ratio = Tn/Tn-1) .

Answer 2

Answer:

Step-by-step explanation:

Sum of G.P. up to n terms if 1st term is a and

common ratio is r .

Sn =a.(1-r^n)/(1-r)………….(1) while r < 1 .

or

Sn =a.(r^n -1)/(r - 1)………(2) while r > 1 .

Sum up to infinite terms = a/(1-r) .

see  gp has a great use so u need to well verse with the topic and also understand the concept while studying  in class room

good luck for ur next grade