Find the angles at which a line with direction ratios `2,-1,2` is inclined to each of the coordinate axes.

Find the angles at which the vector 2hat i-hat j+2tilde k is inclined to each of the coordinate axes.

Find the angle at which the vector hati-hatj+hatk is inclined to each of the coordinte axes.

Write the direction cosines of a line equally inclined to be three coordinate axes.

Find the angle between the lines whose direction ratios are: 2,-3,4 and 1,2,1 .

Find the angles at which the normal vector to the plane 4x+8y+z=5 is inclined to the coordinate axes.

Find the angles between the lines whose direction ratios are 3,2,-6 and 1,2,2.

If O is the origin,OP=3 with direction ratios -1,2, and -2, then find the coordinates of P.

Find the angle between two lines, one of which was direction ratios 2, 2, 1 while the other one is obtained by joining het points (3, 1, 4) and (7, 2, 12).

If the angle between the lines with direction ratios 2, -1, 1 and 1, k, 2 is 60^(@) , then k =

Find the eqn of lines which pass through the point (1,2) and equally inclined to the co- ordinate axes.