#### A line makes equal angles with co-ordinate axes. Direction cosine of this line are Option 1) Option 2) Option 3) Option 4)

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