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Is the sequence (3,7,12,18,\ldots) an arithmetic progression or not?

Answer and explanation

Correct answer: No, because the differences between consecutive terms are not equal

The differences between consecutive terms are \(7-3=4\), \(12-7=5\), and \(18-12=6\). In an arithmetic progression, every consecutive difference must be the same, but here the differences are 4, 5, and 6. Therefore, this is not an arithmetic progression. Merely increasing terms do not make a sequence an AP. Exam tip: To check an AP, compare at least two or three consecutive differences.

Related tags

Arithmetic ProgressionCommon DifferenceSequenceAp IdentificationClass 10 MathematicsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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