Find the length and direction (when defined) of uxv and vxu. u=21-2j-3k, v=3i-3k The length of uxv is 9 (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. 2 1 2 The direction of uxv is i+ j+ k. 3 3 3 (Type exact answers, using radicals as needed.) B. The direction of uxv is undefined. The length of vxu is (Type an exact answer, using radicals as needed.)