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If vec a = i+j+k, vec a. vec b = 1 and v...

If `vec a = i+j+k, vec a. vec b = 1` and `vec a xx vec b = j-k` then `vec b =`

A

i + 4j -2k

B

i-j+k

C

2j-k

D

i

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A
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HIMALAYA PUBLICATION-VECTORS AND THEIR APPLICATIONS-QUESTION BANK
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