If veca =hati + hatj, vecb = hati - hatj...

If `veca =hati + hatj, vecb = hati - hatj + hatk` and `vecc` is a unit vector `bot` to the vector `veca` and coplanar with `veca` and `vecb`, then a unit vector `vecd` is perpendicular to both `veca` and `vecc` is:

A

`1/(sqrt(6))(2hati-hatj+hatjk)`

B

`1/(sqrt(2))(hatj+hatk)`

C

`1/(sqrt(2))(hati+hatj)`

D

`1/(sqrt(2))(hati+hatk)`

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The correct Answer is:

B

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