Let u = PQ and v = PR. P = (-2, -1), Q = (6, -1), R = (4, 4) (=) Write u and v in component form. ( # 1 ' "2 ) = (b) Write u and v as the linear combination of the standard unit vectors i and j. U (c) Find the magnitudes of u and v. lull = (d) Find -4u + v.Consider the following. u = 5i + 9j. v = 4i + 6j (a) Find the projection of u onto v. (b) Find the vector component of u orthogonal to v. -/1 Points] DETAILS LARCALCET7 11.R.019. Find a unit vector in the direction of u = (5, 4, 3). /3 Points] DETAILS LARCALCET7 11.R.031. Consider the following. U = 6i + 2j + 5k v = 4i + 3j + k (=) Find u x v. (b) Find v x U. (c) Find v x v