(Solved): Find the length and direction (when defined) of uv and vu. u=9i,v=5j The length of uv is (Ty ...

Find the length and direction (when defined) of $$\mathbf{u}\times \mathbf{v}$$ and $$\mathbf{v}\times \mathbf{u}$$. $$\mathbf{u}=9\mathbf{i},\mathbf{v}=5\mathbf{j}$$ The length of $$u\times v$$ is (Type an exact answer, using radicals as needed.) Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. A. The direction of $$u\times v$$ is $$??\mathbf{i}+(?\mathbf{j}+()\mathbf{k}$$. (Type exact answers, using radicals as needed.) B. The direction of $$u\times v$$ is undefined. The length of $$\mathbf{v}\times \mathbf{u}$$ is (Type an exact answer, using radicals as needed.) Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. A. The direction of $$\mathbf{v}\times \mathbf{u}$$ is ( $$\mathbf{k}$$. (Type exact answers, using radicals as needed.) B. The direction of $$v\times u$$ is undefined.