If the direction ratios of a line are proportional to 1, –3, 2, the its direction cosines are
The direction ratios of the line are proportional to 1, -3, 2.
The direction cosines of the lines are →
, 
, 
, 
, 
1
If the direction ratios of a line are proportional to 1, –3, 2, the its direction cosines are
The direction ratios of the line are proportional to 1, -3, 2.
The direction cosines of the lines are →
, ,
, ,