Writeanequationtodescribethesequencebelow.Usentorepresentthepositionofaterminthesequence,wheren = 1forthefirstterm.
–258 , –129 ,
–129
2
, ...
Write your answer using proper fractions, improper fractions, and integers.
an =
(
)n - 1
1 answer
a_n = -258(-1/2)^n-1