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A unit vector perpendicular to both hati...

A unit vector perpendicular to both `hati + hatj + hatk` and ` 2hati + hatj + 3hatk` is

A

`(2hati - hatj - hatk) sqrt6`

B

`(2hati - hatj - hatk)/sqrt6`

C

`2hati + hatj + hak`

D

`3hati + hatj + 2hatk/sqrt6`

Text Solution

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The correct Answer is:
B
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