Find the coordinates of the point which divides the join of the points `(2,-1,3)` and (4,3,1)` externally in the ratio 4:3.

(b)Find the coordinates of the point which divides the join of the points A(2,-1,3) and B(4,3,1)externally in the ratio 3:4.

Find the coordinates of the point which divides the join of the points (2,-1,3) and (4,3,1) in the ratio 3:4 internally.

Find the coordinates of the points which divide the join of the points (2-1, 3) and (4,3,1) in the ratio 3:4 internally.

Find the coordinates of the point which divides the line segment joining (-1,3) and (4,-7) internally in the ratio 3:4 .

Find the co-ordinates of the point which divides the join of the points (-1,2,3) and (4,-2,5) in the ratio 1 : 2 externally.

The point which divides the line joining the points (1,3,4) and (4,3,1) internally in the ratio 2:1 , is

The point which divides the line joining the points (1,3,4) and (4,3,1) internally in the ratio 2:1 , is