## Mathematics 220 homework, Fall 2013

Homework assignments will be due at the beginning of class. Each assignment will be announced and posted here at least a week in advance.
• Homework 1, due on Monday, September 16: These questions cover Sections 1.1-1.4 of the textbook. You are responsible for all of the material in these sections. Make sure to review the notation for the "special" number sets in the table at the end of Section 1.1. We will be using these symbols throughout the course.

• Question 1: 1.4 c,d,e (or 1.4 c,d,e in 2nd edition)
• Question 2: 1.7 (or 1.7 in 2nd edition)
• Question 3: 1.12 (or 1.10 in 2nd edition)
• Question 4: 1.17 (or 1.15 in 2nd edition)
• Question 5: 1.19 (or 1.16 in 2nd edition)
• Question 6: 1.25 (or 1.18 in 2nd edition)
• Question 7: 1.29 (or 1.24 in 2nd edition)
• Question 8: 1.38 (or 1.26 in 2nd edition)
Solutions to HW1 are available here.

• Homework 2, due on Monday, September 30: These questions cover Sections 1.5-2.6 of the textbook. You are responsible for all of the material in these sections.

• Question 1: 1.49 (or 1.35 in 2nd edition)
• Question 2: 1.61 (or 1.45 in 2nd edition)
• Question 3: 2.2 a,d,f (or 2.2 a,d,f in 2nd edition)
• Question 4: 2.6 (or 2.6 in 2nd edition)
• Question 5: 2.16 (or 2.11 in 2nd edition)
• Question 6: 2.18 (or 2.13 in 2nd edition)
• Question 7: 2.19 b,c,d (or 2.14 b,c,d in 2nd edition)
• Question 8: 2.30 b,c (or 2.18 b,c in 2nd edition)
• Question 9: 2.39 b,c (or 2.24 b,c in 2nd edition)
Solutions to HW2 are available here.

• Homework 3, due on Friday, October 11: These questions cover Sections 2.7-2.10 and 3.1-3.4 of the textbook. You are responsible for all of the material in these sections. We have skipped Section 2.11.

• Question 1: 2.48 (or 2.32 in 2nd edition)
• Question 2: 2.55 (or 2.38 in 2nd edition)
• Question 3: 2.59 (or 2.40 in 2nd edition)
• Question 4: 2.68 (or 2.46 in 2nd edition)
• Question 5: 2.70 (or 2.48 in 2nd edition)
• Question 6: 3.4 (or 3.4 in 2nd edition)
• Question 7: 3.10 (or 3.8 in 2nd edition)
• Question 8: 3.16 (or 3.12 in 2nd edition)
• Question 9: 3.20 (or 3.16 in 2nd edition)
• Question 10: 3.27 (or 3.20 in 2nd edition)
Solutions to HW3 are available here.

• Homework 4, due on Monday, November 4: These questions cover Sections 4.3-4.5 and 5.1 of the textbook. You are responsible for all of the material in these sections, as well as Sections 4.1-4.2. (We are not including problems from Sections 4.1-4.2 here, as these sections were already covered on the midterm.)
• Question 1: 4.26 (or 4.19 in 2nd edition)
• Question 2: 4.27 (or 4.20 in 2nd edition)
• Question 3: 4.29 (or 4.26 in 2nd edition)
• Question 4: 4.43 (or 4.30 in 2nd edition)
• Question 5: 4.45 (or 4.32 in 2nd edition)
• Question 6: 4.56 (or 4.38 in 2nd edition)
• Question 7: 5.3 (or 5.3 in 2nd edition)
• Question 8: 5.6 (or 5.6 in 2nd edition)
Solutions to HW4 are available here.

• Homework 5, due on Monday, November 18: These questions cover Sections 5.2-5.4 and 6.1-6.2 of the textbook. You are responsible for all of the material in these sections.
• Question 1: 5.13 (or 5.10 in 2nd edition)
• Question 2: 5.18 (or 5.15 in 2nd edition)
• Question 3: 5.20 (or 5.17 in 2nd edition)
• Question 4: 5.40 (or 5.29 in 2nd edition)
• Question 5: 5.41 (or 5.30 in 2nd edition)
• Question 6: 6.11 (or 6.11 in 2nd edition)
• Question 7: 6.26 (or 6.19 in 2nd edition)
• Question 8: 6.27 (or 6.16 in 2nd edition)
Solutions to HW5 are available here.

• Practice problems for Chapters 9 and 10: These questions cover Sections 9.1-9.7 and 10.1-10.3 of the textbook. These are for your own practice (not to be handed in). We will post the solutions later on, tentatively at the end of the last week of classes.
• Question 1: 9.20 (or 9.13 in 2nd edition)
• Question 2: 9.21 (or 9.14 in 2nd edition)
• Question 3: 9.24 (or 9.17 in 2nd edition)
• Question 4: 9.38 (or 9.27 in 2nd edition)
• Question 5: 9.42 (or 9.29 in 2nd edition)
• Question 6: 9.43 (or 9.28 in 2nd edition)
• Question 7: 9.51 (or 9.34 in 2nd edition)
• Question 8: 10.3 (or 10.1 in 2nd edition)
• Question 9: 10.6 (or 10.14 in 2nd edition)
• Question 10: 10.14 (or 10.8 in 2nd edition)
• Question 11: 10.20 (or 10.15 in 2nd edition)
• Question 12: 10.23 (or 10.18 in 2nd edition)
Solutions are available here.

### Guidelines for writing and submitting your homework:

• Show all work. Write clearly and legibly, in complete sentences. Remember that you will be graded both on your command of the material and on the quality of your writing.
• Do all problems in sequence if possible. For each solution, identify clearly the section and problem number (e.g. 1.2, 1.30). Staple your assignment.
• Please use the problem numbers from the 3rd (current) edition of the textbook. The 2nd edition numbers are provided as a courtesy for those students using the 2nd edition, but the TA marking the homeworks only has the 3rd edition.
• You may discuss the homework with other students, but the final write-up must be your own.
• If you cannot come to class, ask a friend to hand in your assignment or drop it off at your instructor's office before 12 noon on the due date. Late homework will not be accepted.

[Mathematics Department] [University of British Columbia]