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

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If (\alpha,\beta,\gamma) are in AP and (\alpha+\gamma=14), what is (\beta)?

Answer and explanation

Correct answer: (7)

For three AP terms, (2\beta=\alpha+\gamma), so (\beta=7). In exams, treat the middle term as the average of the extremes.

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Ap Mean Property Greek Variables Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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