If `P-=(1,5,4) and Q-=(4,1,-2)` find the direction ratios of `vec(PQ)`

P(1,0,-1),Q(2,0,-3),R(-1,2,0) and S(,-2,-1) then find the projection length of vec PQ on vec RS

If P(2,-1,4) is a point in the space, find the direction cosines of vector vec(OP)

p(1,0,-1),Q(2,0,-3),R(-1,2,0) and S(,-2,-1) then find projection lrngth of vec PQ on vec RS

If P=(1,2,3,4,5,6,7) and Q=(2,5,8,9) , then find P-Q.

If P(-1,2) and Q(3,-7) are two points, express the vectors vec(PQ) in terms of unit vectors hatiand hatj . Also find the distance between points P and Q. What is the unit vector in the direction of vec(PQ) ? Verify that magnitude of unit vector indeed unity.

Find a vector of magnitude 11 in the direction opposite to that of vec(PQ) , where P and Q are the points (1, 3, 2) and (-1,0,8) respectively.

Find a vector of magnitude 11 in the direction opposite to that of vec(PQ , where P and Q are the points (1,3,2) and (-1,0,8), respectively.

If P-=(2,-1,4),Q-=(3,2,1) then the co-ordinates of the point which divides PQ externally in the ratio 2:1 are

If P,Q are (2,5,-7), (-3,2,1) respectively then what are the direction rations of the line PQ?