Find the direction cosines of the two lines which are connected by th relations. `l-5m+3n=0a n d7l^2+5m^2-3n^2=0`

Find the direction cosines of the two lines which are connected by th relations. l-5m+3n=0 and 7l^2+5m^2-3n^2=0

Find the direction cosines of the two lines which are connected by th relations.l-5m+3n=0 and 7l^(2)+5m^(2)-3n^(2)=0

Find the direction cosines of the two lines which are connected by the relations l-5m+3n=0 and 7l^(2)+5m^(2)-3n^(2)=0-

Find the direction cosines of the two lines which are connected by the relations l-5m+3n=0,7l^(2)+5m^(2)-3n^(2)=0

Find the direction cosines of the two lines which are connected by the relation l+m+n=0,mn−2nl−2lm=0