Math 231 - Fall 2009

Daniel Moseley

HW #1: pg. 11-15 #1,2,4,6,9,10,13,14,17,20,26,31,35
(Partial) Homework #1 solutions
HW #2: pg. 24-25 #5,6,8,12,13,16,17,23,30
pg. 34-35 #1abc, 7ab, 17ab, 20
prove that C(n,r)+ C(n,r+1) = C(n+1,r+1)
(Partial) Homework #2 solutions
HW #3: pg. 54-55 #1,3,5,6,8ace,10
pg. 66 #1,3,5,6,9
(Partial) Homework #3 solutions
HW #4: Section 2.3: 1a, 2ab, 3abc, 7, 10abcd, 11abc
Section 2.4: 2, 3abde, 4abchij, 6abef, 7a, 9, 12c, 14, 16ab, 18ac, 21bcd
(Partial) Homework #4 solutions
HW #5: Section 2.5: 12ab, 14, 15, 16, 19, 20, 22
(Partial) Homework #5 solutions
HW #6 (due 11/13): Section 3.1: 2abcd, 4abc, 5abc, 7, 9, 10, 13, 14
Section 3.2: 1abcd, 3ab, 6abc, 8abc, 9, 13ab, 14a, 19ace
Section 3.3: 2, 3, 4, 5, 6, 9
(Partial) Homework #6 solutions
HW #7 (due 11/20): Section 4.1: 1abcd, 2abc, 4, 8, 9ab, 10
Section 4.2: 1abcd, 11, 12, 13, 14, 15, 19a
Section 4.3: 2, 3, 4, 7ab, 9, 10, 12abcd, 13, 14, 15, 16, 17
(Partial) Homework #7 solutions
HW #8 (due 12/1): Section 4.4: 1 (finding the gcd only), 2, 3, 6abc, 8, 10, 12, 14, 17, 20, 21
Section 4.5: 1ab, 3, 5, 7ab, 8a, 8b(i-iv), 9, 15, 16, 17, 27a
Homework #8 even solutions
HW #9 (due Never): Section 5.2: 3, 4, 5ab, 9, 16a-f, 18, 20
Section 5.5: 4, 5, 8
Section 5.6: 2, 3, 4, 6, 8, 9, 10c
Homework #9 even solutions