Section	Exercises
15.4	p.1045: 2, 3, 15, 16, 18, 22, 29, 34, 36, 38
15.5	p.1055: 2\(*\), 6, 10, 14, 15, 18, 23, p.1072: 18
	\(*\): Only set up integral – no need to evaluate.
15.6	p.1063: 4, 6, 7, 8, 15, 16,18,20, 22