Hi, please help me do the question (a) (b) (d)

Q70. Some 3D Projections. For each of the pairs of vectors in R3, find (i) the vector projection of v in the direction parallel to u, (ii) the vector projection of v in the direction perpendicular to u (a) u = 3i + 2j + k and v = 4i + j (b) u = i - 2j + 3k and v = 3i - 2j + k (c) u = 2i - 3k and v = 2i + j - k (d) u = 5i + j -3k and v = 2i + 2k (e) u = j - 2k and v = i - k (f) u = itj+k and v =j