Respuesta :

An arithmetic sequence with at least four terms is 1, 5, 9, 13, 17, 21....

  • In an arithmetic sequence, it should be noted that the difference between a terms and the next term that follows is always constant.

  • An example of an arithmetic sequence is 1, 5, 9, 13, 17, 21... The formula to find the nth term of an arithmetic sequence is: = a + (n - 1)d

where,

a = first term = 1

n = number of terms

d = common difference = 5 - 1 = 4

From the example given, the first term is 1, and the common difference is 4

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