# 7.01 Notation for sequences and series

## Interactive practice questions

The sum of the terms of a sequence is:

always divergent

A

a series

B

always finite

C

always divergent

A

a series

B

always finite

C
Easy
Less than a minute
What is the third term in the sequence $4$4, $-5$5, $6$6, $-7$7, $8$8?
Consider the sequence $a_n$an, where the first term is $a_1$a1. What is the fifth term of the sequence?