Consider the example 112 a= [11.0001]b=[0.0001] 11.00014.0001 (a) what are the matrices a+ and p for this example? give exact answers. (b) find the exact solutions x and y = ax to the least squares problem ax ≈ b. (c) what are & (a),0, and q? from here on, numerical answers are acceptable. (d) what are the four condition numbers of theorem 18.1? (e) give examples of perturbations bb and ba that approximately attain these four condition numbers