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  • Brainly User
2016-03-22T05:24:34+05:30
An arithmetic sequence is a string of numbers where each number is the previous number plus a constant. This constant difference between each pair of successive numbers in our sequence is called the common difference. The general term is the formula that is used to calculate any number in an arithmetic sequence.
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2016-03-22T12:35:18+05:30
The General Term

This general term is the formula that is used to calculate any number in an arithmetic sequence.

The formula tells us that if we wanted to find a particular number in our sequence, x sub n, we would take our beginning number, a, and add our common difference, d, times n minus 1, which is the location of our desired number minus 1. If we are looking for the 30th number, our n is 30, so our formula begins with x sub 30, and n - 1 equals 29 (30 - 1).

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