The position vector of a midpoint lying on the line joining the points whose position vectors are `veci+vecj-veck` and `veci-vecj+veck` is

Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are P(veci+2vecj-veck) and Q(-veci+vecj+veck) respectively, in the ratio 2 : 1, internally.

Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are P(veci+2vecj-veck) and Q(-veci+vecj+veck) respectively, in the ratio 2 : 1, externally.

Show that the points whose position vectors are 2veci+3vecj-5veck,3veci+vecj-2veck and 6veci-5vecj+7veck are collinear.

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.

Show that the points whose position vectors are veci -2vecj+3veck , 2veci+3vecj-4veck , and -7vecj +10veck are collinear.

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

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 vector equation of the line joining the points 2veci+4j+3veck and -4veci+3vecj-veck .