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

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If (p,q,r,s) are four consecutive terms of an AP, which relation is always true?

Answer and explanation

Correct answer: (p+s=q+r)

Writing the terms as (p,p+d,p+2d,p+3d) gives (p+s=q+r). In exams, verify four-term relations symbolically.

Related tags

Ap Four Terms Identity Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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