SEQUENCE
Is a setof numbers written in
succession. Each element of the
sequence is called term. The first
element is called first term, followed
by the second term, third term and
so on.
9.
SEQUENCE
Each term ofa sequence is denoted
by where is the term number. For
𝑛
instance, for the first term, for the
second term, for the third term and
so on.
A sequence canalso be described
as a function whose domain is the
finite set {1, 2, 3, … , } or the
𝑛
infinite set {1, 2, 3, … }. This
means that for every value of ,
𝑛
there is only one corresponding
value for .
18.
EXAMPLE
1. Write thefirst four terms of the sequence =
12 − 3n
2. Write the 20th
term of the sequence = 12 −
3n
3. What is the seventh term of the sequence =
− 3?
4. What is the first 5 terms of the sequence =
− 3?