If `l`, m, n are the direction consines of a line, then

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

If (1)/(sqrt(2)),(1)/(2) , n are the direction consines of a line, then n =

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

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

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

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

If (1,2,1), (1,-3,2) are the direction ratios of two lines and (l, m,n) are the direction cosines of a line perpendicular to the given lines, then l + m + n