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Section 11 & 16984
Jing Li
Office: Live Oak Hall (LO), Room 1303C
Phone: 8186777799
Email: jing.li(at)csun(dot)edu
Office hours: Tuesdays & Thursdays 3:30 pm  4:30 pm or by
appointment (email)
December 11, 2014, Thursday 3:00 pm  5:00 pm, Chaparral Hall Room 5119
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.
Tuesdays & Thursdays 2:00 pm  3:15 pm in CR (Chaparral Hall) 5119
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  Sec. 1.1: Definitions and Terminology Sec. 1.2: InitialValue Problems Quiz 1 
Exercises 1.1 (page
10): 5, 7, 13,
17, 21, 29, 31
Exercises 1.2 (page 17): 10, 17, 21, 26, 30, 31, 32, 37; 
(Exercises 1.1: due Sept 4)
(Exercises 1.2 due Sept 11) 
Exercises 1.1 (page
10): 3, 4, 6, 8, 9, 15, 16, 18, 19, 23, 30, 32, 33, 35
Exercises 1.2 (page 17):1, 3, 9, 18, 23, 25, 33, 34; Ch1 in Review (page 33): 33, 34; 
Integral
Review Problem Set
Solutions for Quiz 1 Statistics for Quiz 1 
2  Sept 2 & 4 
Sec. 1.3: Differential Equations as Mathematical Models
Sec. 2.2: Separable Equations Sec. 2.3: Linear Equations 
Exercises 1.3
(page 28): 1,
3, 5, 7, 9, 11
Exercises 2.2 (page 51): 8, 12, 13, 24, 27, 46, 47 Exercises 2.3 (page 61): 4, 13, 17, 19, 33, 35, 38 
(Exercises 1.3 due Sept 11)
(Exercises 2.2 due Sept 11) (Exercises 2.3 due Sept 18) 
Exercises 1.3 (page
28):2, 4, 6, 8, 10, 12;
Exercises 2.2 (page 51):9, 11, 14, 17, 18, 22, 23, 25, 28, 48, 49; Exercises 2.3 (page 61): 712, 1416, 18, 2024, 2732, 34, 36, 37, 39, 40; 

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

4  Sept 16 & 18 
Fundamental Theorems Sec. 2.1: Solution Curves Without a Solution Quiz 2 
Exercises 2.1 (page 43): 19, 21, 25, 29 (Handdrawn sketch ok)  (Exercises 2.1 due Oct 2nd)  Exercises 2.1 (page 43): 20, 22, 23, 24, 26, 27, 28, 30;  Lecture Notes for Sec. 2.1 Solutions for Quiz 2 Statistics for Quiz 2 
5  Sept 23 & 25 
Sec. 2.1.2: Autonomous FirstOrder DEs
Sec. 2.6: A Numerical Method 
Exercises 2.6 (page 79):1, 2;  (Exercises 2.6 due Oct 2nd)  Lecture Notes for Sec. 2.6  
6  Sept 30 & Oct. 2 
Sec. 3.1: Linear Models
Sec. 3.2: Nonlinear Models 
Exercises 3.1
(page 90): 3,
6, 7, 11, 13, 17, 23, 25, 29, 31
Exercises 3.2 (page 100): 1, 2, 3, 5, 7; 
(Exercises 3.1 due Oct 7; Problems 29 and 31 will be due on Oct 16) (Exercises 3.2 due Oct 16) 
Exercises 3.1
(page 90):4, 5, 8, 9, 10, 14, 15, 21, 24, 27, 28, 30, 32,
34 Exercises 3.2 (page 100): 4, 6, 8; 

7  Oct 7 & Oct 9 
Midterm
1
Sec. 3.3: Modeling with Systems of FirstOrder DEs Sec.4.1: Preliminary Theory  Linear Equations 
Exercises 3.3 (Page 110):1, 4, 5, 7; Exercises 4.1 (page 127): 3, 5, 13, 15, 17, 21, 23, 25, 29, 31, 35; 
(Exercises 3.3 due Oct 16)
(Exercises 4.1 due Oct 23) 
Exercises 3.3 (Page 110):2, 3,
6, 8;
Chapter 3 in Review (Page 113):1, 2, 3, 4, 5, 7, 9, 11, 12, 15; Exercises 4.1 (page 127): 2, 4, 6, 7, 9, 10, 14, 16, 1820, 22, 24, 2628, 30, 33, 34; 
Solutions for Midterm 1
Statistics for Midterm 1 
8  Oct 14 & 16 
Sec. 4.1 cont'd
Sec.4.2: Reduction of Order 
Exercises 4.2
(page 131): 6, 7,
9, 11, 13, 15;

(Exercises 4.2 due Oct. 30)  Exercises 4.2 (page 131): 3, 4, 5, 8, 10, 12, 14, 16;  
9  Oct 21 & 23 
Sec. 4.3: Homogeneous Linear Equations with Constant
Coefficients Sec. 4.4: Undetermined Coefficients 
Exercises 4.3
(page 137): 3,
5, 13, 19, 21, 23, 27, 29, 31, 35
Exercises 4.4 (page 147): 7, 10, 15, 17, 19, 30; 
(Exercises 4.3 due Oct. 30) (Exercises 4.4 due Nov 4) 
Exercises 4.3 (page 137): 4, 611, 1418, 20, 22, 24, 25, 26, 28, 30, 3234, 36; Exercises 4.4 (page 147): 6, 8, 1014, 16, 18, 20, 2729, 3134; 

10  Oct 28 & 30 
Sec. 4.6: Variation of Parameters
Sec. 5.1: Linear Model: InitialValue Problems Sec. 5.1: 5.1.3 & 5.1.4 
Exercises 4.6
(page 161): 3,
11, 13, 15, 21, 23;
Exercises 5.1 (page 205): 9, 11, 21, 23, 25, 29, 31, 33, 45, 49, 51, 53 
(Exercises
4.6 due Nov. 4, extended due Nov. 6)
(Exercises 5.1 due Nov 20) 
Exercises 4.6
(page 161): 410, 12, 14, 1620, 22, 24
Exercises 5.1 (page 205): 7, 10, 12, 1720, 22, 24, 26, 30, 32, 34, 3740, 46, 47, 50, 52, 54; 
Solutions for Midterm 2
Statistics for Midterm 2 
11  Nov 4 & 6 
Sec. 6.1: Review of Power Series
Midterm 2 
Exercises 6.1 (page 237): 517 odd 2333 odd;  (Exercises 6.1 due Nov 25)
(Exercises 6.2 due Dec 2) 
Exercises 6.1 (page 237): 6, 8, 10, 14, 16, 24, 26, 28, 30, 35, 37;  
12  Nov 11 & 13 
Veterans' Day Holiday, no Class on Tuesday
Sec. 6.2: Solutions About Ordinary Points 
Exercises 6.2 (page 246): 1, 3, 9, 13, 15, 19, 21, 23;  (Exercises 6.2 due Dec 2)  Exercises 6.2 (page 246): 5, 7, 11, 14, 16, 17, 18, 20;  
13  Nov 18 & 20  Linear Algebra Topics 


Exercises For Appendix II (page APP18): 117 odd, 23, 25, 27, 29, 3139 odd, 4755 odd;  
14  Nov 25 & 27 
Sec. 8.1: Preliminary Theory  Linear Systems
Thanksgiving Recess, no Class on Thursday 
Exercises 8.1 (page 332): 3, 5, 7, 9, 11, 13, 17, 21;  (Exercises 8.1 due TBA)  Exercises 8.1 (page 332): 1, 15, 19, 23, 25;  
15  Dec 2 & 4 
Sec. 8.2: Homogeneous Linear Systems Review 
Exercises 8.2 (page 346): 1, 3, 5, 7, 9, 11, 13  (Exercises 8.2 due TBA)  Exercises 8.2 (page 346):2, 4, 6, 8, 10, 12, 14  Solutions for Midterm 3 
16  Dec 9 & 11  Midterm 3
Final Exam on Dec 11 