If the line through the points A (k,1,-1) and B(2k,0,2) is perpendicular to the line through the points B and `C(2+2,k,1)`, then what is the value of k?

If the line through the points A(k,1,-1) and B (2k,0,2) is perpendicular to the line through the points B and C(2+2k,k,1) , then what is the value of k?

Find the value of p for which the line through the points A(4,1,2) and B(5,p,0) is perpendicular to the line through the points C(2,1,1) and D(3,3,-1) .

The straight line joining the points (-2,5) and (-4,3) is perpendicular to the line joining the points (k,0) and (2,3k) , find k.

Determine the value of k so that the line joining points A(k,1,-1) and B(2,0,2k) is perpendicular to the line joining the points C(4,2k,1) and D(2,3,2) .

Determine the value of k so that the line joining points A(k,1,-1) and B(2,0,2k) is perpendicular to the line joining the points C(4,2k,1) and D(2,3,2) .

If a line passing through (4, 1, 2) and (5, k, 0) is perpendicular to the line passing through (2, 1, 1) and (3, 3, -1), then k =

If the line passing through the points (-8,3),(2,1) is parallel to the line passing through the points (11,-1),(k,0) then the value of k is