The volume of the parallelopied, whose e...

The volume of the parallelopied, whose edge are represented by `- 12 hati + alpha, hatk, 3 hatj - hatk 2 hati + hatj - 15 hatk,` is 546, then `alpha` is :

A

3

B

2

C

`-3`

D

`-2.`

Verified by Experts

The correct Answer is:

C

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