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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
`vec(A) xx vec(B) - vec(B) xx vec(A) = 0 rArr vec(A) xx vec(B)+ vec(A) xx vec(B) = 0 `
` :. vec(A)xxvec(B) = 0 `
Angle between them is ` 0 , pi , or 2 pi `
from the given options , `theta = pi `
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