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If vec(A) xx vec(B) = vec(B) xx vec(A), ...

If `vec(A) xx vec(B) = vec(B) xx vec(A)`, then the angle between `A to B` is

A

`(pi)/(2)`

B

`(pi)/(3)`

C

`pi`

D

`(pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
We know that `vecAxxvecB=-(vecBxxvecA)` because the angle between these two is always `90^@`
But if the angle between `vecA` and `vecB` is 0 or `pi`. Then
`vecAxxvecB=vecBxxvecA=0`.
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