Question

when A is3 and B is 2 find angle betwwen A.B​

Answer 1

Answer:

a

.

b

=∣a∣∣b∣cosθ

6

=

3

×2×cosθ

cosθ=

2

1

θ=

4

π

Explanation:

Originally Answered: If A and B are two vectors, what is the angle between (A+B) and (A-B) ? It depends on the values of A and B vectors and angle between them. then angle between vectors A+B and A -B is 90°.