If vec(A) xx vec(B) = 0 and vec(B) xx vec(C ) = 0, the angle between vec(A) and vec(C ) is :

If vec(A) xx vec(B) = 0 and vec(B) xx vec(C ) = 0, the angle between v

1.	If vec(A) xx vec(B) = 0 and vec(B) xx vec(C ) = 0, the angle between vec(A) and vec(C ) is :
Answer» 0 `PI` `pi//4` `pi//2` ANSWER :A::B