## College Algebra (6th Edition)

A sequence can be finite or infinite. An infinite sequence $(a_{n})$ is a function whose domain is the set of positive integers. A finite sequence is a function whose domain consists only of the first $n$ positive integers.
A sequence can be finite or infinite. An infinite sequence $(a_{n})$ is a function whose domain is the set of positive integers. For example: $N= (0, 1, 2, 3, 4. . .)$ $S= (\frac{1}{2},\frac{1}{4}, \frac{1}{8}. . .)$ A finite sequence is a function whose domain consists only of the first $n$ positive integers. For example: $(1, 3, 5, 7, 9)$