Find the angles which the vector 
makes with the coordinate axes.
If we have a vector 
= a
+ b
+ c
then the angle with the x - axis = 
the angle with the y - axis = 
the angle with the z - axis = 
Here, 
= 3
- 6
+ 2
then the angle with the x - axis = 
the angle with the y - axis = 
the angle with the z - axis = 
Ans:
1