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A unit vector perpendicular to the plane...

A unit vector perpendicular to the plane containing the vectors `hati+2hatj+hatk` and `-2hati+hatj+3hatk` is

A

`(hati+hatj+hatk)/(sqrt3)`

B

`(-hati+hatj-hatk)/(sqrt3)`

C

`(hati+hatj-hatk)/(sqrt3)`

D

`(-hati-hatj-hatk)/(sqrt3)`

Text Solution

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The correct Answer is:
B
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