HW Set 8 (assigned  Wednesday Oct 28, 2009)
Problems for quiz 8 (in discussion sections week of Nov 2)

Sec 4.5 # 4, 7, 9, 10, 11, 18, 19, 27, 28, 37, 41, 43, 63, 64, 65

Sec 4.6 # 3, 5, 7, 11, 44(b), 48