Let veca=hatj-hatk and vecc=hati-hatj-ha...

Let `veca=hatj-hatk` and `vecc=hati-hatj-hatk`. Then the vector `vecb` satisfying `vecaxxvecb+vecc=vec0` and `veca.vecb=3` is

A

`-hati+hatj-2hatk`

B

`2hati-hatj+2hatk`

C

`hati-hatj-2hatk`

D

`hati+hatj-2hatk`

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The correct Answer is:

A

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