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The unit vector in XOZ plane and making ...

The unit vector in `XOZ` plane and making angles `45^@` and `60^@` respectively with `vec(a)=2i+2j-k` and `vecb=0i+j-k`, is

A

`1/sqrt(2)(-i+k)`

B

`1/sqrt(2)(i-k)`

C

`-1/sqrt(2)(i+k)`

D

none of these

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The correct Answer is:
B
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MCGROW HILL PUBLICATION-VECTOR ALGEBRA-EXERCISE (Level-2 Single Correct Answer Type Questions)
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  15. Given the vectors a=3i-j+5k" and "b=i+2j-3k. A vector c which is perp...

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  17. If vector vec a+ vec b bisects the angle between vec a and vec b , ...

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  18. The vector bar(AB)=3hati+4hatk and bar(AC)=5hati-2hatj+4hatk are the s...

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