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Class 9 Mathematics Sequences and Progressions Explicit or general ruleHard

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In the sequence (45,40,35,30,\ldots), which term is (0)?

Answer and explanation

Correct answer: (10)th

The general term is (a_n=50-5n), and (50-5n=0) gives (n=10). Even in a decreasing sequence the position remains natural.

Related tags

Sequences Progressions Decreasing-Sequence Term-Position Explicit Or General Rule Sequences And Progressions Mathematics Class 9 Mcq

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