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Class 9 Mathematics Sequences and Progressions Explicit or general ruleEasy

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What is the general term of the sequence (54,48,42,36,\ldots)?

Answer and explanation

Correct answer: (a_n=60-6n)

At (n=1) it gives (54), and at (n=2) it gives (48), so (a_n=60-6n). In exams, check a decreasing sequence rule using (n=1).

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Sequences Progressions Explicit-Rule Class-9 Easy Explicit Or General Rule Sequences And Progressions Mathematics

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