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Is the sequence (a_n=(-1)^n n) an AP?

Answer and explanation

Correct answer: No, the consecutive difference is not constant

The signs alternate and the difference does not remain the same. In exams, test alternating-sign sequences by differences only.

Related tags

ApAlternating SequenceNot ApIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)Arithmetic Progressions ApMathematics

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