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If a=hati+hatj+hatk,a.b=1andaxxb=hatj-ha...

If `a=hati+hatj+hatk,a.b=1andaxxb=hatj-hatk` then b=

A

`2hati`

B

`2hatj-hatk`

C

`hati-hatj+hatk`

D

`hati`

Text Solution

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The correct Answer is:
D
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