If l,m,n are direction cosines of the line then `-l,-m,-n` can be

If l, m, n are direction cosines of a line then l hat(i) + m hat(j) + n hat(k) is________

If l,m,n are direction cosines of a line , then vector li +mj+nk is a

If l,m,n are the direction cosines of a half line op then the maximum value of l.m.n is

If (l,m,n) are the direction cosines of a line then l^(2)+m^(2)+n^(2)=

If (l,m,n) are direction cosines of a line then L^(2)+m^(2)+n^(2)

If l , m, n are the direction cosines of a line, then: a) l^(2)+m^(2)+n^(2)=1 b) l^(2)+m^(2)+n^(2)=0 c) l+m+n=1 d) l+m+n=0

l=m=n=1 represent direction cosines of

If l_(1), m_(1), n_(1) and l_(2), m_(2), n_(2) are the direction cosines of two lines and l , m, n are the direction cosines of a line perpendicular to the given two lines, then