Here are some homework problems from the book Differential Equations by Polking, et.al. I may assign some extra problems in lecture from time to time. The problems are grouped by week, up to the first midterm exam. You will not have to write up the homework to hand in but there will be quizzes based on it. And remember that you can use your notes, including homework problems, on the midterm and final exams.
Section Problems
HW I 2.1 5,
6, 7, 9, 17
2.2
1, 2, 7, 15, 17, 23-26,
35-37
HW II 2.3 3, 7,
14, 18
2.4
1, 10, 18, 24, 28, 29,
33, 35, also do 37,38 by the method of "undetermined coefficients"
2.5
5, 9, 10
2.6
Skip this section.
HW III 2.7 7, 10,
11, 17, 27, 30, 31, 32
2.8
1-8, 13, 17, 18
2.9
15, 18, 19, 22, 23,
27, 30, 31
HW IV 4.1 5, 6, 9,
10-13
4.2
1, 6, 9, 13, 17, 18
4.3
1, 2, 8, 9, 13, 15,
19, 20, 21, 27, 29, 32, 33, 37
4.4
1, 3, 7, 13, 14, 19,
20
HW V 4.5 1, 5,
7, 10, 12, 17, 24, 27, 33, 39, 41, 43, 44, 46, 47
4.6
1, 9, 13
4.7
2, 7, 9, 10, 18, 19,
25, 27
HW VI 6.1 3, 4, 17, 20
6.2
3, 4, 10, 11, 21, 22
HW VII 8.1 7, 14, 15, 32-34
8.2 13-18, 22, 26
8.3 2, 3, 6, 7, 10
8.4 1, 4, 8, 11, 14, 17, 20, 23, 24, 34-36
HW VIII 9.1 14, 17, 21, 25, 26, 35, 47, 48, 53, 54, 56
9.2 3, 9, 13, 23, 25, 27, 31, 35, 37, 39, 41, 45
9.3 12-15, 25, 29, 33, 42, 44, 46
HW IX 9.4 3, 7, 8, 13, 14, 21, 22, 27, 28, 33, 34, 41, 49
9.5 1, 5, 8, 9, 11, 13, 17, 21, 25, 27, 31, 35
HW X 9.6 1, 2, 5, 7, 9, 10, 11, 15
9.8 Using var. of parameters 1, 9
Using undetermined coef. 3, 5, 7, 11, 13, 15, 17, 27
HW XI 10.1 1, 4, 7, 9, 12, 15, 17, 19, 20
10.2 1, 5, 11, 13, 15, 17, 18, 19, 21b
HW XII 10.3 1, 4, 5, 8, 9, 13, 15
10.4 1, 4, 5, 6, 7, 11, 12, 23, 24
(prob. 24, sign error: change to xÕ=3x-y-x^3)
HW XIII 10.5 1, 3, 6, 11, 13, 16, 21, 23
10.6 1-6, 7, 10, 13, 14, 25, 27, 29
HW XIV 10.7 1, 3, 9, 17, 18, 20, 22, 24, 25