Calculus A Homework 4 Due Friday, September 30, 2011 Section 2.4 # 4, 18, 26, 46. Section 2.5 # 2, 4, 12, 15, 16, 22, 24, 39. Section 2.6 # 4, 6, 8, 11, 12, 17, 18, 20, 22, 24, 25, 28, 29, 31, 36, 44, 47.