![]() To find the next number in the sequence, we would add 3 to 11, which gives us 14. For example, in sequences 2, 5, 8, and 11, the common difference is 3. We add the common difference to the current term to find the next number in an arithmetic sequence. ![]() Where a1 is the first term of the sequence and n is the position of the term in the sequence. The formula for the nth term of an arithmetic sequence is: An = a1 + (n - 1)d The difference between consecutive terms is called the common difference, denoted by the letter d. Arithmetic SequencesĪn arithmetic sequence is a sequence of numbers in which the difference between two consecutive terms is always the same. It's also used in many other fields, such as cryptography, genetics, statistics, etc.
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