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Which property correctly identifies a sequence as an arithmetic progression?

Answer and explanation

Correct answer: Each term is obtained by adding a fixed number to the preceding term

In an arithmetic progression, each term is obtained by adding the same fixed number, called the common difference, to the preceding term. For example, in 5, 9, 13, 4 is added each time. A constant difference between consecutive terms is an equivalent statement, so the original options A and C would both have been correct; C is retained as the definitional form to ensure one correct answer. A constant ratio identifies a geometric progression. Exam tip: compare consecutive differences.

Related tags

Arithmetic ProgressionSequencesCommon DifferenceSequence ClassificationClass 9 MathematicsSequences And ProgressionsMathematicsClass 9 Mcq

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