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Section 01 & 15302
Jing Li
Office: Live Oak Hall (LO), Room 1303C
Phone: 8186777799
Email: jing.li(at)csun(dot)edu
Office hours: Mondays & Wednesdays 11:00 am  12:00 pm or by
appointment (email)
December 11, 2013, Wednesday 8:00 am  10:00 am, Chaparral Hall Room 5117
Midterm Exam 1: (date to be annouced) in class.
Midterm Exam 2: (date to be annouced) in class.
Midterm Exam 3: (date to be annouced) in class.
Mondays & Wednesdays 9:30 am  10:45 am in CR (Chaparral Hall) 5117
A First Course in Differential Equations with modeling Applications (10th edition) by Dennis G. Zill.
I will post all assigments, solutions and additional material in this
space. You should therefore consult this spot frequently.
Course Syllabus
Week  Date  Topics covered  Homework  Homework due date  Practice Problems  Additional Material 

1  Aug 26 & 28  General Introduction Sec. 1.1: Definitions and Terminology 
Exercises 1.1 (page 10): 5, 7, 13, 17, 21, 29, 31 
(Exercises 1.1: due Sept 11)  Exercises 1.1 (page
10): 3, 4, 6, 8, 9, 15, 16, 18, 19, 23, 30, 32, 33, 35 
Intergral Review Problem Set 
2  Sept 2 & 4  Labor Day Holdiay Sec. 1.2: InitialValue Problems Sec. 2.2: Separable Equations 
Exercises 1.2 (page 17): 10, 17, 21, 26, 30, 31, 32, 37; Exercises 2.2 (page 51): 8, 12, 13, 24, 27, 46, 47 
(Exercises
1.2 due Sept 11)
(Exercises 2.2 due Sept 18) 
Exercises 1.2 (page
17):1, 3, 9, 18, 23, 25, 33, 34;
Ch1 in Review (page 33): 33, 34; Exercises 2.2 (page 51):9, 11, 14, 17, 18, 22, 23, 25, 28, 48, 49; 

3  Sept 9 & 11  Sec. 2.2 (cont'd): examples Sec. 2.3: Linear Equations 
Exercises 2.3
(page 61): 4,
13, 17, 19, 33, 35, 38 
(Exercises 2.3 due Sept 18)  Exercises 2.3 (page
61): 712, 1416, 18, 2024, 2732, 34, 36, 37,
39, 40; 

4  Sept 16 & 18  Sec. 2.4: Exact Equations Quiz 1 
Exercises 2.4 (page 69):4, 9, 11, 25, 27, 29, 31;  (Exercises 2.4 due Oct 9) 
Exercises 2.4 (page 69): 58, 10, 1224, 26, 28, 30, 3239;  Solutions for Quiz 1 
5  Sept 23 & 25  Sec. 2.5: Solutions by Substitutions
Fundamental Theorems 
Exercises 2.5 (page 74): 7, 9, 11, 15, 19, 21, 23, 25, 29  (Exercises 2.5 due Oct 9) 
Exercises 2.5
(page 74): 5, 8, 10, 12, 13, 16, 17, 18, 20, 22, 24, 26, 27,
28, 30; 

6  Sept 30 & Oct 2 
Sec. 2.1: Solution Curves Without a Solution Sec. 2.6: A Numerical Method 
Exercises 2.1 (page 43): 19, 21, 25, 29 (Handdrawn sketch ok) Exercises 2.6 (page 79):1, 2; 
(Exercises
2.1 due Oct 9) (Exercises 2.6 due Oct 9) 
Exercises 2.1 (page 43): 20, 22, 23, 24, 26, 27, 28, 30;  Lecture Notes for Sec. 2.1 Lecture Notes for Sec. 2.6 
7  Oct 7 & 9  Sec. 3.1: Linear Models
Midterm 1 
Exercises 3.1 (page 90): 3, 6, 7, 11, 13, 17, 23, 25, 29, 31  (Exercises 3.1 due Oct. 21)  Exercises 3.1 (page 90):4, 5, 8, 9, 10, 14, 15, 21, 24, 27, 28, 30, 32, 34  Solutions for Midterm 1 
8  Oct 14 & 16  Sec.4.1: Preliminary Theory  Linear Equations  Exercises 4.1
(page 127): 3,
5, 13, 15, 17, 21, 23, 25, 29, 31, 35; 
(Exercises 4.1 due Oct. 28)  Exercises 4.1 (page 127): 2, 4, 6, 7, 9, 10, 14, 16, 1820, 22, 24, 2628, 30, 33, 34  
9  Oct 21 & 23 
Sec.4.2: Reduction of Order
Quiz 2 Sec. 4.3: Homogeneous Linear Equations with Constant Coefficients 
Exercises 4.2
(page 131): 6, 7,
9, 11, 13, 15; Exercises 4.3 (page 137): 3, 5, 13, 19, 21, 23, 27, 29, 31, 35 
(Exercises
4.2 due Oct 30) (Exercises 4.3 due Nov. 4) 
Exercises 4.2
(page 131): 3, 4, 5, 8, 10, 12, 14, 16; Exercises 4.3 (page 137): 4, 611, 1418, 20, 22, 24, 25, 26, 28, 30, 3234, 36; 
Solutions for Quiz 2 
10  Oct 28 & 30 
Sec. 4.3 cont'd
Sec. 4.4: Undetermined Coefficients 
Exercises 4.4 (page 147): 7, 10, 15, 17, 19, 30;  (Exercises 4.4 due Nov. 13)  Exercises 4.4 (page 147): 6, 8, 1014, 16, 18, 20, 2729, 3134;  
11  Nov 4 & 6 
Sec. 4.4 cont'd
Sec. 4.6: Variation of Parameters Sec. 5.1: Linear Model: InitialValue Problems 
Exercises 4.6 (page 161): 3, 11, 13, 15, 21, 23;  (Exercises
4.6 due Nov. 13)

Exercises 4.6
(page 161): 410, 12, 14, 1620, 22, 24


12  Nov 11 & 13  Veterans' Day Holiday
Midterm 2 
Solutions for Midterm 2  
13  Nov 18 & 20  Sec. 5.1 cont'd
Sec. 6.1: Review of Power Series 
Exercises 5.1 (page 205): 9, 11, 21, 23, 25, 29, 31, 33, 45, 49, 51, 53  (Exercises 5.1 due Nov. 25)  Exercises 5.1 (page 205): 7, 10, 12, 1720, 22, 24, 26, 30, 32, 34, 3740, 46, 47, 50, 52, 54;  
14  Nov 25 & 27 
Sec. 6.1: cont'd
Sec. 6.2: Solutions About Ordinary Points 
Exercises 6.1
(page 237): 517
odd 2333 odd; Exercises 6.2 (page 246): 1, 3, 9, 13, 15, 19, 21, 23; 
(Exercises 6.1, 6.2 won't be collected)  Exercises 6.1
(page 237): 6, 8, 10, 14, 16, 24, 26, 28, 30, 35, 37;
Exercises 6.2 (page 246): 5, 7, 11, 14, 16, 17, 18, 20; 
Solutions for Quiz 3 
15  Dec 2 & 4 
Linear Algebra Topics
Sec. 8.1: Preliminary Theory  Linear Systems Sec. 8.2: Homogeneous Linear Systems 
Exercises 8.1
(page 332): 3,
5, 7, 9, 11, 13, 17, 21;
Exercises 8.2 (page 346): 1, 3, 5, 7, 9, 11, 13 
(Exercises 8.1 won't be collected) (Exercises 8.2 won't be collected) 
Exercises 8.1
(page 332): 1, 15, 19, 23, 25 Exercises For Appendix II (page APP18): 117 odd, 23, 25, 27, 29, 3139 odd, 4755 odd; Exercises 8.2 (page 346):2, 4, 6, 8, 10, 12, 14 
Solutions for Quiz 4 
16  Dec 9  Midterm 3  Solutions for Midterm 3  
17  Final Exam on Dec 11 