§6.8: 23, 25, 51.
§9.2: 33, 35, 41, 55.
Chapter 9, Misc. problems, s. 718: 31, 33 (areal via planintegralet).
§10.4: 9, 10, 12, 19.
§11.5: 33, 35.
§11.6: 7, 11, 15, 19.
Chapter 12, Misc. problems, s. 994: 6, 8, 11, 14, 15, 25, 41, 43, 45.
Chapter 13, Misc. problems, s. 1075: 1, 3, 5, 7, 9, 15, 17, 19, 25.