Question

How do you find the sum of the infinite geometric series 2/9+2/27+2/81+2/243+...?

Answer 1

Formula for infinite geometric sum ...

`S_(oo)=a_1/(1-r`

Explanation:

For this problem, `r=(2/27)/(2/9)=1/3`

`S_(oo)=(2/9)/(1-(1/3))=1/3`

hope that helped