Assignment #2  (Finish before Feb 24, 2007)
-------------

Section 2.1: 1, 2, 4, 9, 19, 20, 30, 31, 33, 34.
Section 2.2: 1, 2, 3, 18, 25.         
Section 2.3: 1--5, 12, 13;        
Section 2.4: 3, 4, 13, 14, 15, 19, 21, 32;        

Section 3.1: 3, 8, 9, 20;        
Section 3.2: 1, 4, 18, 19, 22, 25.
Section 3.3: 1, 2, 7, 8.
Section 3.4: 7, 8, 10, 11, 15, 20, 24, 27, 28, 31.
Section 3.5: 1, 4, 8, 11, 27, 31, 32, 34.
Section 3.6: 1, 4, 5, 6, 19, 25, 27, 28.
Section 3.7: 1, 3, 15, 18, 22, 28.
Section 3.8: 1, 2, 3, 6, 8, 10, 11, 12, 14, 16, 17, 22, 27, 28, 30, 33--36.