Page No 478:
Question 10:
Find the angle between the following pairs of lines:
(i) ![]()
![]()
(ii)
and![]()
(i) Let Q be the angle between the given lines.
The angle between the given pairs of lines is given by, 
The given lines are parallel to the vectors,
and
, respectively.


(ii) The given lines are parallel to the vectors,
and
, respectively.

