# Thread: find sum of infinite geometric series

1. ## find sum of infinite geometric series

nb

2. Originally Posted by oceanmd
find sum of infinite geometric series, if it has one
Problem 1) 32,16,8,....
Solution: r=1/2; Sum=64

Problem 2) 3, 15, 75, .....
solution: r=5, so it does not have a sum

Thank you very much.
Yes, seems fine.

If |r| > 1 then a series does not converge.