Direction of zero vector
doesnot exist
is towards origin
is indeterminate
none of these
The value of is
0
-1
1
3
2
If θ is the angle between two vectors only when
0 < θ < π/2
0 ≤ θ ≤ π/2
0 < θ < π
0 ≤ θ ≤ π
π/3
π/6
π/4
π/2
√5
√3
√2
5
16
8
12
6
Find the angle θ between the vectors
sin-1(1/3)
sin-1(-1/3)
cos-1(1/3)
cos-1(-1/3)
4