यदि a + b + c = 9 एवं a^(2) + b^(2) + c^...

यदि `a + b + c = 9` एवं `a^(2) + b^(2) + c^(2) = 35`. तो `sqrt((a^(3) + b^(3) + c^(3) - 3abc )/( 12) ) = ?`

A

`pm 2`

B

`pm 5`

C

`pm 3`

D

`2`

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The correct Answer is:

C

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