Page 7 - Practicum 5_Buku Digital Flip pdf_Grace Margareth_Arithmetic Sequence and Series Grade XI

Mathematics Teaching Material Sequence and Series Grade XI

In the example above, the numbers have certain rules so that they are called number

sequences.

2. Number pattern of the nth term ( )

Examples of sequences and number patterns:

Number Sequence Number Pattern

Odd Number Sequence: Pattern: = 2 − 1

1,3,5,7,9,… n = natural number

Sequence of Even Pattern: = 2

Numbers:
n = natural number
2,4,6,8,10,…

2
Square Numbers: Pattern: =

1,4,9,16,25,… n = natural number

2
Rectangular Number Pattern: =

Sequence:
n = natural number
1,4,9,16,25,…

1,4,9,16,25,…
Triangle Series Pattern: = ( + 1)
1

1,3,6,10,15,21,… 2
n = natural number

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