The value of a so that the volume of the...

The value of `a` so that the volume of the paralelopiped formed by `hati+ahatj+hatk, hatj+ahatk `and `ahati+hatk` becomes minimum is

A

`-3`

B

3

C

`1//sqrt(3)`

D

`sqrt(3)`

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The correct Answer is:

C

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