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Given sum of the first n terms of an A.P...

Given sum of the first `n` terms of an A.P is `2n + 3n^(2)`. Another A.P. is formed with the same first term and double of the common difference, the sum of `n` terms

A

`n+4n^2`

B

`6n^2-n`

C

`n^2+4n`

D

`3n+2n^2`

Text Solution

Verified by Experts

The correct Answer is:
B
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