If two adjacent sides of a square are represented by the vectors `xveci+vecj+4veck` and `3veci+yvecj` then `xy=`

Find the area of the parallelogram whose adjacent sides are determined by the vectors veca = veci - vecj + 3veck and vecb = 2veci - 7vecj + veck

Find the angle between the vectors veci+2vecj+3veck and 3veci-vecj+2veck

Find the angle between the vectors 3veci-4vecj+veck and veci-3vecj+4veck .

The angle between the two vectors- 2veci+3vecj+veck and veci+3vecj-4veck is.

The unit vector parallel to the resultant of the vectors veci+vecj-veck and veci-2vecj+veck is ……….

Find angle 'Ɵ' between the vectors veca = veci + vecj - veck and vecb = veci - vecj + veck .

Find the values of x and y so that the vectors 2veci+3vecj and xveci+yvecj are equal.

Find the vectors of magnitude 6 which are perpendicular to both the vectors 4veci-vecj+3veck and -2veci+vecj-2veck .

If a vector vecr of magnitude 3sqrt6 is directed along the bisector of the angle between the vectors veca =7veci-4vecj -4veck and vecb = -2veci- vecj+ 2veck , then vecr is equal to

Find the projection of the vector veci + 3vecj + 7veck on the vector 7veci - vecj + 8veck