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Let a(1),a(2),a(3),...... be an A.P.If a...

Let `a_(1),a_(2),a_(3),......` be an A.P.If `a_7=3`,the product `(a_(1),a_(4))` is minimum and the sum of its first `n` terms is zero then `n!-4a_(n(n-2))` is equal to

A

`(381)/(4)`

B

`9`

C

`(33)/(4)`

D

`24`

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The correct Answer is:
D
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