Section	Exercises
15.1	p.1018: 1, 6, 9, 11, 12, 20, 21, 28, 32, 35, 36, 37, 38, 39, 40
15.2	p.1028: 2, 3, 4, 5, 6, 10, 11, 12, 14, 16, 21, 22, 36
15.3	p.1036: 2, 24, 26, 27, 28, 29, 30, 32, 35, 36