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

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If (4t+1,t+10,-t+21) are consecutive terms of an AP, what are (t) and (d)?

Answer and explanation

Correct answer: (t=-2,d=15)

Equal differences give (-3t+9=-2t+11), so (t=-2) and (d=15). In exams, subtract first from second and second from third.

Related tags

Ap Parameter Three Consecutive Terms Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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