If the first, second and last term of an A.P. are a, b and 2a respectively, its – OfficerPath

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If the first, second and last term of an A.P. are a, b and 2a respectively, its sum is

Subject: MathematicsTopic: Progressions

A

fracab2left(b - a)

B

fracabb - a

C

frac3ab2left(b - a)

D

None of these

Correct Answer: C

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