A vector `hat C` of magnitude `20sqrt6` parallel to the bisector of the angle betybisector of the angle between `hata=7hati-4hatj-4hatk and hatb=-2hati-hat j+2hatk` is

A vector widehat C of magnitude 20sqrt(6) parallel to the bisector of the angle betybisector of the angle between widehat a=7hat i-4hat j-4hat k and hat b=-2hat i-hat j+2hat k is

Find the angle between the vectors veca=hati-hatj+hatk and hatb=hati+hatj-hatk .

Find the angle between two vectors hatA=2hati+hatj-hatk and hatB=hati-hatk

Find the angle between the vectors 4hati-2hatj+4hatk and 3hati-6hatj-2hatk.

Find the angle between the vectors 4hati-2hatj+4hatk and 3hati-6hatj-2hatk.

Find the angle between the vectors 2hati-hatj+hatk and 3hati+4hatj-hatk .