Find the angle between the plane `x+y-2z+5=0 ` and the line whose direction cosines are `1/sqrt(6),2/sqrt(6),1/sqrt(6)`.

Find the angle between the lines whose direction cosines are (-(sqrt3)/(4), (1)/(4), -(sqrt3)/(2)) and (-(sqrt3)/(4), (1)/(4), (sqrt3)/(2)) .

Can the direction cosines of a line be 1/sqrt2 , 1/sqrt2, 1/sqrt2 ?

The angle between the lines whose direction cosines are (sqrt3/4,1/4,sqrt3/2) and (sqrt3/4,1/4,(-sqrt3)/2) is

Find the direction ratios of a line whose direction cosines are (1)/(2),(1)/(sqrt(2)),(1)/(2)

Find the angle between the lines y-sqrt(3)x-5=0 and sqrt(3)y-x+6=0

The angle between the two lines having direction cosines (2/sqrt(6),-1/sqrt6,1/sqrt6) and (1/sqrt6,1/sqrt6,2/sqrt6) is

A straight line L on the xy-plane bisects the angle between OX and OY. What are the direction cosines of L? a.(:(1/sqrt(2)),(1/sqrt(2)),0:)b(:(1/2),(sqrt(3)/2),0:)c.(:0,0,1:)d(:(2/3),(2/3),(1/3):)

Find the angle between the two lines whose direction cosines are: (2)/(3),(-1)/(3),(-2)/(3) and (3)/(7),(2)/(7),(6)/(7) .

The angle between the lines whose direction cosines are proportional to (1,2,1) and (2,-3,6) is

Find the angle made by the line x+sqrt3y-6=0 with the positive direction of the x-axis.