Direction cosine and ratio of line

Can be the direction cosines of a line?

Direction Cosines And Direction Ratios Of A Line

Direction cosines of a line , whose direction ratios are -2,1,2 are

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

Define direction cosines of a directed line.

If l,m,n are direction cosines of the line then -l,-m,-n can be: a) only direction ratios of the line b) only direction cosines of the line c) direction cosines and direction ratios of the line d) neither direction cosines nor direction ratios of the line

If the direction ratios of a line find the direction cosines of the line.

If a line has direction cosines , then find the direction ratios.

If the direction ratio of a line is 1,-2,2 Then what are the direction cosines of the line

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