Consider an arithmetic sequence 17/7,31/7,45/7.....
(a) Write the algebraic expression of this sequence. (b) Is there any counting number in this sequence. Justify your answer.
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To find the "nth" term of an arithmetic sequence, start with the first term, a(1). Add to that the product of "n-1" and "d" (the difference between any two consecutive terms). For example, take the arithmetic sequence 3, 9, 15, 21, 27.... a(1) = 3. d = 6 (because the difference between consecutive terms is always 6.
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