If a and b are two vectos such that `a.b lt 0 and |a.b|=|axxb|`, then the angle between a and b is

If AxxB=BxxA then the angle between A and B is

If A.B=AxxB , then angle between A and B is

If A.B=AxxB , then angle between A and B is

Vectors a and b are such that |a|=1,|b|=4 and a.b=2." If " c=2axxb-3b , then the angle between b and c is

If a,b,c be unit vectors such that a.b = a.c = 0 and the angle between b and c is pi//6 then a =

If A and B are two matrices such that A+B =AB , then

Let A,B and C be the unit vectors . Suppose that A.B=A.C =0 and the angle between B and C is (pi)/(6) then prove that A = +-2(BxxC)

Let A,B and C be the unit vectors . Suppose that A.B=A.C =0 and the angle between B and C is (pi)/(6) then prove that A = +-2(BxxC)