1.

A unit vector perpendicular to the plane containing the vectors hati+2hatj+hatk and -2hati+hatj+3hatkis

Answer»

1)`(-hati+hatj+hatk)/SQRT3`
2)`(hati-hatj+hatk)/sqrt3`
3)`(-hati-hatj-hatk)/sqrt3`
4)`(hati+hatj-hatk)/sqrt3`

ANSWER :A


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