Arithmetic
Geometric
Harmonic
Fibonacci
Sequences
How Well do you Know
Me? Determine whether
each sequence is
arithmetic, geometric, or
harmonic. Then, give the
next term of each
sequence.
10
seconds
1
6, 18,
54,
162, ...
Geometric 486
Answer
2
4, 10,
16, 22,
...
Arithmetic 28
Answer
3
625,
125,
25, 5,
Geometric 1
Answer
4
1
2
,
1
4
,
1
6
,
1
8
,…
HARMONIC 1/10
Answer
5
1
3
,
1
6
,
1
9
,
1
12
,…
HARMONIC 1/15
Answer
Determine the
next term of the
given sequence
10
seconds
1
1, 1, 2, 3,
5, 8, 13,
21…
34
Answer
2
8, 13,
21, 34,
55,…
89
Answer
What kind of
sequence were
given?
How did you
obtain the next
term of each
sequence?
1.What is a Fibonacci
sequence?
2. How do you distinguish
them from other types of
sequence?
A Fibonacci sequence is a
sequence where its first two
terms are either both 1, or 0 and
1; and each term, thereafter, is
obtained by adding the two
preceding terms.
Example:
0, 1, 1,
2, 3,
5, …
Given the
Fibonacci sequence
5, 8, 13, 21, 34, ...
Find the next 6
terms.
55,89,144,233,377,610
Answer
If F1 = 6 and F2 =
3, list the first 8
terms of this type
of Fibonacci
sequence.
6,3,9,12,21,33,54,87
Answer
Determine whether each
sequence is Arithmetic,
Geometric, Harmonic or
Fibonacci. Then, give the
next term of each sequence.
10
seconds
1
5, 8, 13, 21,
34, …
55- Fibonacci
Answer
2
-1296, 216, -
36, 6,…
-1-Geometric
Answer
3
8.2, 8, 7.8,
7.6, …
7.4-Arithmetic
Answer
4
-1/42, -1/35,
-1/28, -1/21, …
-1/14-Harmonic
Answer
5
2, 9, 16,
23,…
30 -Arithmetic
Answer
Arithmetic Sequence is a
sequence where each term
after the first is obtained by
adding a constant called
common difference.
Example:
3,7,11
,15,…
Geometric Sequence is a
sequence where each
term after the first is
obtained by multiplying a
constant called common
ratio.
Example:
3,9,27
,81,24
3,…
Harmonic sequence is
a sequence such that
the reciprocals of the
terms form an
arithmetic sequence.
Example:
If we take the
reciprocals of
the terms of the
harmonic
sequence
½,1/4,1/6,/1/8…
then the
sequence
becomes 2, 4, 6,
8, ... which is an
arithmetic
sequence.
A Fibonacci sequence is a
sequence where its first two
terms are either both 1, or 0 and
1; and each term, thereafter, is
obtained by adding the two
preceding terms.
Example:
0, 1, 1,
2, 3,
5, …

FIBONACCI-SEQUENCE.pptx

Editor's Notes