Exercises in Chapter 4 and Chapter 5

Recommended exercises:

• Section 4.2.1, page 107:  1, 3.
• Section 5.2.1, page 119:  1, 2, 3.
• Section 5.3.1, page 128:  1, 2, 3, 7, 11, 12

Some of these exercises might be solved in class in the foreseeable future.