Math, asked by RiturajBhattacharjee, 1 year ago

find the sum of first r terms of the series

Attachments:

Answers

Answered by Ananya1993
1
When n=1 ,2.3^n-1=2.3^1-1=2+1=3
When n=2, 2.3^n-1=2.3^2-1=6+1=7
When n=3, 2.3^n-1=2.3^3-1=18+1=19
When n=4, 2.3^n-1=2.3^4-1=54+1=55
.
.
.
And so on....
So its clearly a G. P
Similar questions