1. Stewart, Section 12.4, Exercises 2, 4, 11, 12, 26.
2. Stewart, Section 12.5, Exercises 5, 13, 15, 20.
3. Stewart, Section 12.5, Exercises 30, 31,
4. Stweart, Section 12.5, Exercises 33, 34, 38.
5. Stewart, Section 12.5, Exercise 40 [Optional 49, 52].