A line makes equal angles with co-ordinate axes. Direction cosine of this line are
As learnt in
Direction Cosines -
If are the angles which a vector makes with positive X-axis,Y-axis and Z-axis respectively then
are known as diresction cosines, generally denoted by (l,m,n).
- wherein
where,
Option 1)
This option is incorrect
Option 2)
This option is correct
Option 3)
This option is incorrect
Option 4)
This option is incorrect