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What is the common difference of the sequence (12,10,8,6,\ldots)?

Answer and explanation

Correct answer: -2

The common difference is found by subtracting a term from the succeeding term. Here, \(10-12=-2\), and the same difference occurs between successive terms. Therefore, the common difference is \(-2\). Exam tip: a decreasing AP has a negative common difference.

Related tags

Arithmetic ProgressionsCommon DifferenceDecreasing ApNegative DifferenceClass 10 MathematicsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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