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Class 9 Mathematics Sequences and Progressions Explicit or general ruleHard

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If (a_n=7-3n), what is the common difference of this sequence?

Answer and explanation

Correct answer: (-3)

In a linear rule the coefficient of (n) is (-3), so the common difference is (-3). Read the coefficient of (a_n) carefully.

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Sequences Progressions Common-Difference Linear-Rule Explicit Or General Rule Sequences And Progressions Mathematics Class 9 Mcq

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