0
-1
1
2
2/3
-2/3
-3/2
3/2
3
Vectors (p,q) and (5, 1) are parallel if
p + q = 5
pq = 5
p = 5 q
q = 5 p
The angle between the vectors
π/2
π/4
π/3
The vectors is
A null vector
Perpendicular to both
Perpendicular to