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If the \(p\)th term of an AP is \(a_p\) and its common difference is \(d\), which relation correctly gives the \(n\)th term?

Answer and explanation

Correct answer: \(a_n=a_p+(n-p)d\)

From the \(p\)th term to the \(n\)th term, the common difference is added \(n-p\) times, so \(a_n=a_p+(n-p)d\). Option C reverses the difference. Exam tip: count gaps between term positions, not the positions themselves.

Related tags

Arithmetic ProgressionNth TermCommon DifferenceAp FormulaSequence PropertiesFinding The $N$Th Term Of An ApFinding The N Th Term Of An ApArithmetic Progressions (Ap)

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