Question

?How do you find the sum of the infinite geometric series 4+2+1+1/2+1/4 ...

Answer 1

The sum of an infinite geometric series is:
`S=(a_1)/(1-r)`

Explanation:

For this problem, `r=1/2` and `a_1=4`

`S=(a_1)/(1-r)=(4)/(1-1/2)=8`

hope that helped