Question

Which term of g.p 3 9 27.... Is2187

Answer 1

Step-by-step explanation:

2187 is nth term an=2187

a=3 r=3

arn-1=2187

3*3n-1=2187

3n-1=729

3n-1=3 to the power 6

(a to the power m= a to the power n gives m=n) n-1=6

n=7

2157 is 7th term