Homework Zero (No due date)
 Section 1.1: 1, 3, 11
 Section 1.2: 1(a), 3(a)
 Section 1.3: 1, 3, 5, 7, 11, 15, 17, 19
Reading: Chapter 1 Sections 1  3. We will not discuss these sections in class, but they introduce several key ideas that we will revisit throughout the course. 

Homework 1 (Online HW Due Thu, Oct 6)
 Section 2.1: 1c, 3c, 4c, 6c, 14, 15, 20, 31
 Section 2.2: 1, 2, 3, 4, 6, 9a, 17a, 19a, [30(abcde), 32b]
 Section 2.3: 13, 15, 17a, 18a
 Section 2.4: 1, 5, 14, 15, [27, 28]
Reading: Chapter 2, Sections 14. We will not spend much time in class discussing 2.3 (Modeling with First Order Equations), but this section gives valuable insight into why exactly we want to study differential equations and find their solutions. 

Homework 2 (Online HW Due Thu, Oct 13)
 Section 2.5: 3, 12, 13, [16, 22, 23]
 Section 2.6: 1, 3, 6, 8, 10, 15, [20, 22]
 Section 3.1: 1, 2, 3, 9, 16, 18, 20, 23
Reading: Chapter 2, Sections 5 and 6. Also read Chapter 3, Section 1. 

Homework 3 (Online HW Due Thu, Oct 20)
 Section 3.2: 1, 2, 3, 7, 9, 13, 14, 24
 Section 3.3: 8, 9, 15, 19, 21, 22, 27, 29, [34, 36]
 Section 3.4: 1, 2, 8, 11, 12, 14, 23, 25
Reading: Chapter 3, Sections 24. 

Homework 4 (Online HW Due Thu, Oct 27)
 Section 3.5: 1, 6, 8, 9, 16, 17
 Section 3.6: 7, 10, 13, 17
Reading: Chapter 3, Sections 5 and 6. Pay special attention to Table 3.5.1 on page 182. We may not have time to deal with each case in class. In 3.6, the emphasis is on learning to correctly use the formulas in Theorem 3.6.1. 

Homework 5 (Online HW Due Thu, Nov 3)
 Section 7.1: 1, 5, 7, 11, 12, [13]
 Section 7.2: 2, 10, 22, 23
 Section 7.3: 13, 14, 16, 17, 18, 21
Reading: Sections 1, 2, and 3 in the Math 20D Supplement. (These cover the contents of Chapter 7, Sections 13 in the textbook, but restricted to the 2x2 matrix case.) 

Homework 6 (Online HW Due Thu, Nov 10)
 Section 7.4: 4, 6, 7
 Section 7.5: 1a, 2a, 3a, 15, 16, [24, 27]
 Section 7.6: 1a, 3a, 9, 10, 13(ab), [26, 28(ab)]
Reading: Sections 4, 5, and 6 in the Math 20D Supplement. (These cover the contents of Chapter 7, Sections 4  6 in the textbook, but restricted to the 2x2 matrix case.) 

Homework 7 (Online HW Due Thu, Nov 17 24)
 Section 7.8: 1c, 2, 7, 10, [16]
 Section 7.9: 1, 3, 7, 9
Reading: Sections 8 and 9 in the Math 20D Supplement. (These cover the contents of Chapter 7, Sections 8 and 9 in the textbook, but restricted to the 2x2 matrix case.) We will not cover Section 7, which applies to matrices larger than 2x2. (Section 7.9 is optional.) 

Homework 8 ( Online HW Due Thu, Nov 24 There is no longer an Online HW 8)
 Section 5.1: 9, 12, 15, 16, 17, 18, 21, 25
 Section 5.2: 1, 6, 7, 9, [21]
Reading: Chapter 5, Sections 1  2. 

Homework 9 (Online HW Due Thu, Dec 1)
 Section 6.1: 3, 5, 12, 15, 21, 23
 Section 6.2: 1, 2, 7, 11, 16, 23
Reading: Chapter 6, Sections 1 and 2. 

Homework 10 (No due date—No homework is due during Final Exam Week)
 Section 6.3: 1, 4, 10, 14, 16
 Section 6.4: 1, 2, 3, 5, 11
 Section 6.5: 1, 2, 4, 6, 7
Reading: Chapter 6, Sections 3  5. 
