For each geometric progression find the common ratio ‘r’, and then find a_n
2, -6, 18, -54….

Question

For each geometric progression find the common ratio ‘r’, and then find a n 2, -6, 18, -54….

Philoid · Accepted Answer

First term (a) = 2

Common ratio (r) = =

n^th term in the GP (a_n) = ar^n-1

a_n = 2(^n-1

For each geometric progression find the common ratio ‘r’, and then find an2, -6, 18, -54….