Arithmetic Sequences (Jump to: Lecture | Video )

Sequence

A Sequence is an ordered list of numbers.

Below are three examples of sequences:

-2, 5, 8, 15, 20

-21, -18, -7, 7, 8

1, 2, 3, 5, 7, 9, 10

Arithmetic Sequence

An Arithmetic Sequence is an ordered list of numbers where the difference between any two consecutive numbers is equal.

Below are two examples of arithmetic sequences:

Figure 1.

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