find a reflector Q that maps x = [ 3, 4, 1, 3, 1]

. Find a reflector Q that maps the vector r = 3, 4, 1, 3, 1] to a vector of the form [llac |/2, 0, 0, 0, 0]. Write Q in two ways: in the form Q =1-2 uuT 1/ 20113 for some appropriate u, and as a completely assembled matrix. . Let a = [0, 2, 1, -1, 0]. Calculate Qa in two different ways: by using Q =1-2 uuT for some appropriate u, and by using the assembled matrix Q. Which of the two ways is faster