Homework for a section is due at the beginning of class two class sessions after the section is discussed in class (to allow discussion after the problems are attempted).

There are answers to odd-numbered problems in the book.

**section 4.1:**- 4, 6, 8, 12, 18, 20, 26, 28
**section 4.2:**- 6, 10, 12, 16, 28, 30, 38, 40, 44, 48, 56
**section 4.3:**- 2, 6, 10, 12, 14, 16, 22, 26, 36
**section 4.4:**- 4, 6, 8, 10, 12, 16, 22
**section 4.5:**- 4-32 by fours, 34, 38, 40, 46, 52

Mon May 4 09:44:17 MDT 1998