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What is the nth term of the sequence (1/2, 2/3, 3/4, 4/5, …)?

Answer and explanation

Correct answer: n/(n + 1)

Observe the numerator and denominator patterns separately. The numerators are 1, 2, 3, 4, so the numerator of the nth term is n. The denominators are 2, 3, 4, 5, each one greater than its corresponding numerator, so the denominator is n + 1. Therefore the nth term is n/(n + 1), making option A correct.

Related tags

SequencesNth-TermExplicit-RuleMathematicsClass 9Nth TermSequences And ProgressionsClass 9 Mcq

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