How many lines through the origin make equal angles with the coordinate axes? (A) 1 (B) 4 (C) 8 (D) 2

Q.find the equations of the straight lines passing through the origin and making equal angle with the co-ordinate axes.

Write a unit vector making equal acute angle with the coordinates axes.

A line with positive direction cosines passes through the ont P(2,-1,2) and makes equal angles with the coordinate axes. The line meets the plane 2x+y+z=9 at Q. The length of the line segment PQ equals (A) 1 (B) sqrt(2) (C) sqrt(3) (D) 2

A line with positive direction cosines passes through the point P(2,1,2) and makes equal angles with the coordinate axes.The line meets the plane 2x+y+z=9 at point Q. The length of the line segment PQ equals

Find the direction cosines of a line which makes equal angles with the coordinate axes.

The equation of the line passing through (0,0) and making equal angles with coordinate axes is

The equation of the plane through (-1,1,2), whose normal makes equal acute angles with coordinate axes is

a pair of lines passing through the point (3,d) and parallel to coordinate axes