Question

If 3 A.B= AB 2 , then A and B are
1) Perpendicular vectors
2) Oblique and with angle between them π rad 3
3) Parallel vectors
4) Oblique with angle between them π rad​

Answer 1

Answer:

Correct option is

D

Oblique with angle between them

6

π

rad

A

⋅

B

=ABcosθ=AB

2

3

⇒cosθ=

2

3

⇒θ=30

0

=

6

π