Find the angle betwene the vecrtors `3hati+4hatj+5hatk and hati+hatj+hatk`. Also find the sine of the angle between them.

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

Find the angle between the vectors 3hati+4hatj and 2hatj-5hatk .

Find the angle between the vectors 2hati-hatj+hatkand3hati+4hatj-hatk .

Find the angle between two vector A=2hati+hatj-hatk andB=hati-hatk.

The angle between the two vectors A=3 hati+4hatj+5hatk and B=3hati+4hatj-5hatk is

Find the angle between the vectors: vecA=hati-2hatj-5hatkandvecB=2hati+hatj-4hatk

the angle between the vectors (hati+hatj) and (hatj+hatk) is

The angle between vectors (hati+hatj+hatk) and (hatj+hatk) is :

The sine of the angle between the vector a=3hati+hatj+hatk and b=2hati-2hatj+hatk is

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 .