Three Dimensional Geometr Y
If a line makes angles 90°, 135°, 45° with the x, y and z-axes respectively, find its direction cosines.
Find the direction cosines of a line which makes equal angles with the coordinate axes.
If a line has the direction ratios -18, 12, - 4, then what are its direction cosines ?
Show that the points (2, 3, 4), (- 1, - 2, 1), (5, 8, 7) are collinear.
Find the direction cosines of the sides of the triangle whose vertices are (3, 5, - 4), (- 1, 1, 2) and (- 5, - 5, - 2).