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Let veca = hati + hatj + hatk, vecb = ha...

Let `veca = hati + hatj + hatk, vecb = hati - ahtj + hatk and hati - hatj - hatk ` be three vectors. A vector `vecv` in the plane of `veca and vecb,` whose projection on `vecc` is `(1)/(sqrt3),` is given by :

A

`4i-j+4k`

B

`i+j-2k`

C

`4i+j-4k`

D

`3i+j-3k`

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The correct Answer is:
A
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