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In which sequence are the consecutive differences not equal?

Answer and explanation

Correct answer: (2,3,5,8,\ldots)

In the sequence (2,3,5,8,\ldots), the differences between successive terms are \(3-2=1\), \(5-3=2\), and \(8-5=3\). Since these differences are not equal, it is not an arithmetic progression. In contrast, the common differences in A, B, and C are \(5\), \(-4\), and \(0\), respectively. Exam tip: subtract consecutive terms; a sequence is an AP only when this difference remains constant.

Related tags

Arithmetic ProgressionCommon DifferenceNot An ApClass 10 MathematicsSequencesIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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