If for two vectors `vec(A)` and `vec(B), vec(A)xxvec(B)=0`, the vectors

For any non-zero vectors vec(a)andvec(b)vec(a)xxvec(b) is

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

Find the angle between two vectors vec a and vec b, if |vec a xxvec b|=vec a*vec b

Find the angle between two vectors vec a and vec b, if |vec a xxvec b|=vec avec b

For any two vectors vec a and vec b ,prove that (vec a xxvec b)^(2)=|vec a|^(2)|vec b|^(2)-(vec a*vec b)^(2)