Find a unit vector perpendicular to the plane of two vectros. `veca=hati-hatj+2hatk and vecb=2hati+3hatj-hatk`

The number of unit vectors perpendicular to the plane of vectors veca=2hati-6hat j-3hatk and vecb=4hati+3hatj-hatk is/are

Find a unit vector perpendicular to the plane containing the vectors : veca=2hati+hatj+hatk and vecb=hati+2hatj+hatk .

A unit vector perpendicular to the plane of veca = 2hati -6hatj -3hatk and vecb = 4hati +3hatj-hatk is

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

Find a unit vector perpendicular to the plane of two vectors veca and vecb where veca=hati-hatj and vecb=hatj+hatk

Find a unit vectro perpendicular to the plane of two vectors veca and vecb where veca=hati-hatj and vecb=hatj+hatk

Find a unit vectro perpendicular to the vectors veca=3hati+2hatj-hatk and vecb=12hati+5hatj-5hatk Also determine the sine of the angle between veca and vecb .