READING:
Sections 3.5, 6.4--6.7.
Homework:
Section 3.5: 1, 6, 8, 12, 13, 14, 15, 16.
Section 6.5: 2, 4, 8, 14, 20, 23, 24.
Section 6.6: 1, 3, 6, 9, 12, 14, 16.
Section 6.7: 2, 5, 10.