. Assume two vector ả = [−1,−4,−5] and b = [6,5,4] a) Rewrite it in terms of i and j and k b) Calculated magnitude of a and b c) Express a + b and a - b in terms of i and j and k d) Calculate magnitude of a + b e) Show that a +b| ≤ |à| + | b| f) Calculate a b g) Find the angle between those two vector h) Calculate projection à on b. i) Calculate axb j) Evaluate the area of parallelogram defined by a and b