If vecp=hati+hatj, vecq=4hatk-hatj and v...

If `vecp=hati+hatj, vecq=4hatk-hatj` and `vecr=hati+hatk`, then the unit vector in the direction of `3vecp+vecq-2vecr` is

A

`1/3(hati+2hatj+2hatk)`

B

`1/3(hati-2hatj-2hatk)`

C

`1/3(hati-2hatj+2hatk)`

D

`hati+2hatj+2hatk`

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The correct Answer is:

A

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