Question

Find the sum of the geometric series.
10
1. Ó 5(2)^i - 1
i= 1

12
2. Ó 8(3/2)^i - 1
i= 1

Answer 1

Sorry it would show the sign, but it's the sigma sigma sign and it kind of looks like an E. Some like this: ‡”

Answer 2

Still not showing it. It's in the form of an E.