Find a unit vector perpendicular to both `veca ` and `vecb` .

Find a vector perpendicular to both veca and vecb .

Find a unit vector perpendicular to each of vectors (veca + vecb) and ( veca - vecb) where veca = hati+ hatj + hatk and vecb = hati + 2hatj + 3hatk .

Find a unit vector perpendicular to each of the vectors veca+vecb and veca-vecb , where veca=3hati+2hatj+2hatk and vecb=hati+2hatj-2hatk .

Find a unit vector which is perpendicular to both the vectors 2hati + hatj - hatk and 3hati + 4hatj - hatk .

Find unit vectors perpendicular to the vectors 2hati - 3hatj + 4hatk and 4hati - hatj - 2hatk .

Are all unit vectors equal ?

Find the unit vector in the direction of the vector veca+vecb where veca =2hati - hatj +2 hatk and vecb = - hatj +hatj- hatk