Find the direction cosines of the line perpendicular to the lines whose direction ratios are `-2, 1, -1 and -3, -4,1`.

Find the direction cosines of the line which is perpendicular to the lines whose direction ratios are and .

Find the direction ratios of a vector perpendicular to the two lines whose direction ratios are -2, 1, -1 and -3, -4, 1 .

Find the direction cosines of the line which is perpendicular to the lines with direction ratios 4, 1, 3 and 2, -3, 1 .

The direction ratios of vector perpendicular to the two lines whose direction ratios are -2, 1, -1 and -3, -4 , 1 are

The direction cosines of the line which is perpendicular to the lines with direction ratios -1, 2, 2 and 0, 2, 1 are

Find the direciton cosines of a line which is perpendicular to the lines whose direcition ratios are (1,-2,3) and (2,1,-1)