Find a vector of magnitude 7 , which is perpendicular to both the vectors : `2hati-hatj+hatk` and `hati+hatj-hatk`

Find a vector of magnitude 9, which is perpendicular to both the vectors : 4hati-hatj+3hatk and -2hati+hatj-2hatk .

Find a vector of magnitude 8, which is perpendicular to both the vectors 2hati-hatj+3hatk and -hati+2hatj-hatk .

Find a vector of magnitude 19, which is perpendicular to both the vectors : 4hati-hatj+8hatk and -hatj+hatk .

Find a vector of magnitude sqrt(171) , which is perpendicular to both of the vectors veca=hati+2hatj-3hatk and vecb=3hati-hatj+2hatk

The unit vector perpendicular to the vectors 6hati+2hatj+3hatk and 3hati-6hatj-2hatk , is

Find all vectors of magnitude 10sqrt3 that are perpendicular to the plane of hati+2hatj+hatk and -hati+3hatj+4hatk .

Find the angle between the vectors : hati+hatj+hatk and hati+hatj-hatk .

Find a vector perpendicular to both : veca=3hati-2hatj+hatk and vecb=hati+4hatj-hatk .