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Class 10 Mathematics Arithmetic Progressions (AP)Introduction to APs and common difference.Expert

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If a sequence has (a_{n+1}-a_n=2n+1), when will it be an AP?

Answer and explanation

Correct answer: Never

The difference depends on (n), so it is not constant for all (n). In exams, if (n) remains in the difference, it is not an AP.

Related tags

Ap Definition Variable Difference Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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