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Identify the series 1 + 5 + 9 + 13 + 17 + . . . .

arithmetic
geometric
neither

User Thanh
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2 Answers

3 votes
it looks like an arithmetic sequence :)
User Derek Foulk
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If you are adding the same number in a sequence, then it is arithmetic. If you are multiplying by the same number, it is geometric. Since here you are adding the same number (4), it means that the series 1 + 5 + 9 + 13 + 17 + . . is arithmetic.
User Vinay Hunachyal
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