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Let vec a = i-j, vec b = j-k, vec c = k-...

Let `vec a = i-j, vec b = j-k, vec c = k-i`. If `vec d` is a unit vectors such that `vec a. vec d = 0 = [vec b vec c vec d]`, then `vec d =`

A

`+-(i+j-2k)/sqrt6`

B

`+-(i+j-k)/sqrt3`

C

`+- (i+j+k)/sqrt3`

D

`+- vec k`

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The correct Answer is:
A
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HIMALAYA PUBLICATION-VECTORS AND THEIR APPLICATIONS-QUESTION BANK
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