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If vec a = 2i+3j-4k, vec b = i + j +k an...

If `vec a = 2i+3j-4k, vec b = i + j +k` and ` vec c = 4i+2j+3k`, then `|vec a xx (vec b xx vec c)| =`

A

`sqrt10`

B

1

C

2

D

`sqrt5`

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The correct Answer is:
D
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