Direction cosine of the line joining `A( 5, -3, 8) and B(7,-5,9)` are

Find the direction cosines of the line joining the points (2,3,4) and (4,5,6)

If first two numbers of the direction cosines of a line joining points (1,2,0) and (3,-1,z) are (2/7),-(3/7) then z is equal to

The direction cosines of the line joining the points (1,2,-3) and (-2,3,1) are

What is the sum of the squares of direction cosines of the line joining the points (1,2,-3) and (-2,3,1)?

What is the sum of the squares of direction cosines of the line joining the points (1,2,-3) and (-2,3,1) ?

Find the direction cosines of the line joining the points (1,1,-3) and (-2,-3,2)

Find the direction cosines of the line segment joining the points A(7,-5,9) and B(5,-3,8) .

Find the direction-cosines of the line joining the points (-2,4,-5) and (1,2,3).

Find the direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1) directed from A to B .