The angle between vectors `(vec(M)xx vec(N))` and `(vec(N)xx vec(M))` is

The angle between vec(A) + vec(B) and vec(A) xx vec(B) is

If vec(a).vec(b)=|vec(a)xx vec(b)| , then angle between vector vec(a) and vector vec(b) is :

If vec(a) and vec(b) are unit vectors, then the vectors (vec(a) + vec(b)) xx (vec(a) xx (vec(b)) is parallel to the vector.

If vec(a) and vec(b) are two unit vectors, then the vector (vec(a) + vec(b)) xx (vec(a) xx vec(b)) is parallel to

What is the angle between (vec A+ vec B) and (vec A xx vec B) ?

Let vec(a)=2hati+hatj-2hatk and vec(b)=hati+hatj . Let the vector vec( c ) is such that |vec( c )-vec(a)|=3,|(vec(a)xx vec(b))xx vec( c )|=3 . The angle between vec( c ) and vec(a)xx vec(b) is 30^(@) . Then vec(a).vec( c ) = ……………