Question
The angle between the lines 2x = 3y = − z and 6x = − y = − 4z is
-
0o
-
90o
-
45o
-
30o
Solution
B.
90o
Angle between the lines 2x = 3y = - z & 6x = -y = -4z is 90°
Since a1a2 + b1b2 + c1c2 = 0