Suggested additional review problems:
Section 3.9: 3, 5, 19
Review Exercises and Problems for Chapter 4:
1, 3, 5, 13, 15, 25, 35, 37, 51
Section 4.4: 3, 15ab
Section 4.6: 17, 19, 21
Section 4.7: 9, 11, 13, 17, 23, 27