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If (a,b,c) are consecutive terms of an AP, which relation is always true?

Answer and explanation

Correct answer: (2b=a+c)

In an AP, the middle term is the average of the two extremes, so (2b=a+c). In exams, this is the fastest check for three terms.

Related tags

ApThree TermsMean PropertyIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)Arithmetic Progressions ApMathematics

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