Question

Question #3dee6

Answer 1

`S=5/6`

Explanation:

SUM OF INFINITE GEOMETRIC SERIES FORMULA
`S=a_1/(1-r)`
`S=` sum
`a_1=` first term
`r=` rate

`1-1/5+1/25-1/125+`...
`a_1=1`
`r=-1/5`
`S=1/(1-(-1/5))`
`S=1/(5/5+1/5)`
`S=1/(6/5)`
`S=5/6`