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In an arithmetic progression, how is the common difference (d) found?

Answer and explanation

Correct answer: \(d=a_2-a_1\)

In an arithmetic progression, the common difference is the difference between consecutive terms. If the first two terms are \(a_1\) and \(a_2\), then \(d=a_2-a_1\). Option C reverses the subtraction and gives \(-d\). In exams, subtract the earlier term from the later term.

Related tags

Arithmetic ProgressionCommon DifferenceAp BasicsClass 10 MathematicsConsecutive TermsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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