I need help with these problems please, and please make it legible.

Find the following for the vectors u = 3i 9] + Wk and v = - 3i + 9] - Wk. a.v-u, VI, and lul b. the cosine of the angle between v and u c. the scalar component of u in the direction of v d. the vector projvu V'u=|_l (Simplify your answer.) IvI=D (Type an exact answer, using radicals as needed.) IUI=I:I (Type an exact answer, using radicals as needed.) The cosine of the angle between v and u is El. (Type an exact answer, using radicals as needed.) The scalar component of u in the direction of v is E. (Type an exact answer, using radicals as needed.) projvu= E)\" E)!\" (W (Type exact answers, using radicals as needed.) Find the vectors whose lengths and directions are given. Try to do the calculations without writing. Length Direction a. 7 k b. 13 -j A C . 2 k 5 d. 7 IN . . . . . a. The vector with length 7 and direction k is (2 ) i + (? ) j + (2 ) k . (Type exact answers, using radicals as needed.) b. The vector with length 13 and direction - j is (? i + (? )j + (?)k. (Type exact answers, using radicals as needed.) w c. The vector with length NI - and direction 4 k is ?) i+ ? j + ( ? | ) k. (Type exact answers, using radicals as needed.) d. The vector with length 7 and direction 6 -k is ? i - ? + ? K