Complete the following problems from Elementary Linear Algebra, 6th Edition: 1.1.2(b,d), 1.1.3(b), 1.1.6(b,d), 1.1.7(b,d,f), 1.1.9, 1.1.24, 1.2.11, 1.2.13, 1.2.14, 1.2.15, 1.2.18