[" If "A times B=B times A" then angle between "A],[B" is "]

If barA xx barB =barB xx barA then the angle between A and B is :

If barA xx barB =barB xx barA then the angle between A and B is :

If a, b and c are three unit vectors satisfying 2a times(a timesb)+c=0 then the acute angle between a and b is

If vec A cdot vec B =0 and vec A xx vec C=0 , then the angle between B and C is

If vec A cdot vec B =0 and vec A xx vec C=0 , then the angle between B and C is

Evaluate : b times b times b times b

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

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

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