Find the mid-point of the segment joining the points (-1,-1,3) and (2,6,-1).

Write down the coordinates of the mid point of the segment joining the points A(1,-3,5) and B(-3,7,1).

What is the position vector of the mid-point of the line segment joining the points A(2,3,4) and B(4,1,-2).

Find the slope of a line, whch passes through the origin and the mid-point of the line segment joining the points P(0, -4) and B(8, 0).

Find the slope of a line, which passes through the origin, and the mid-point of the line segment joining the points P (0,-4) and B (8, 0).

Find the equation of the line joining the points A(0,-1,3) and B(2,-3,-1).

Find the projection of the line segment joining the points (1,2,3), (4,3,1) on the line with direction ratios lt3,-6,2gt .

Find the ratio in which the segment joining the points(-3, 10) and (6,-8) is divided by (- 1, 6).

Find the position vector of the mid-point of the vector joining the points P(2,3,4) and Q(4,1,-2).