2 Problem 1.1-3, page 6

2.1 problem 1.1-3 (a)
2.2 problem 1.1-3 (b)
2.3 problem 1.1-3 (c)
2.4 problem 1.1-3 (d)
2.5 problem 1.1-3 (e)
2.6 problem 1.1-3 (f)