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यदि veca*vecb=1, vecb *vecc=2 तथा vecc*v...

यदि `veca*vecb=1, vecb *vecc=2` तथा `vecc*veca=3` है, तो
`[veca xx(vecb xx vecc), vecb xx (vecc xx veca), vecc xx (vecb xx veca)]` का मान बराबर है:

A

0

B

`-6veca *(vecb xx vecc)`

C

`12vecc *(veca xx vecb)`

D

`-12vecb *(vecc xx veca)`

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