Math 221 - Introduction to Linear Algebra

Fall 2006 - Matthias K. Gobbert

Homework - Last Updated 11/30/06


The assigned homework problems are listed below. This page will be updated throughout the semester if necessary. Watch for announcements in class, by e-mail, or in Blackboard.

Homework is due at the beginning of class on the dates listed. No late homework can be accepted under any circumstances due to the difficulty to communicate with the grader in a timely and orderly fashion. However, two homeworks will be dropped to avoid penalizing infrequent absences.

The chapter and section numbers refer to the text, David C. Lay, Linear Algebra and Its Applications, third edition, Addison-Wesley, 2003 (or updated printing 2006).


HW Recommended Problems Required Problems
HW 1 Handout due Tuesday 09/05 Note the date!
HW 2 Sections 1.1, 1.2 due Thursday 09/07
1.1: 3, 9, 13, 15, 17, 19, 23, 27 1.1: 10, 14, 16, 18, 22
1.2: 1, 3, 7, 13, 19, 21, 23, 25, 29 1.2: 12, 14, 20, 24, 26
HW 3 Sections 1.3, 1.4 due Thursday 09/14
1.3: 5, 9, 11, 13, 15, 17 1.3: 6, 10, 12, 14, 18
1.4: 3, 5, 7, 9, 11, 15, 17, 23, 33 1.4: 4, 6, 8, 10, 12, 22, 32
HW 4 Sections 1.5, 1.7 due Thursday 09/21
1.5: 1, 5, 7, 11, 15, 17, 23, 29, 35 1.5: 2, 6, 8, 12, 16
1.7: 5, 11, 21, 27, 35, 37 1.7: 6, 14, 28, 36, 38
HW 5 Sections 1.8, 1.9 due Thursday 09/28
1.8: 1, 3, 9, 11, 15, 21, 27, 29, 31, 35 1.8: 2, 4, 10, 12, 16, 32, 36
HW 6 Sections 2.1 due Thursday 10/05
1.9: 3, 15, 17, 19, 21, 29, 33 1.9: 8, 12, 16, 18, 22, 30, 36
2.1: 1, 3, 5, 15, 23, 25, 27, 31 2.1: 2, 4, 6, 8, 10, 24, 32
HW 7 Sections 2.2, 2.3 due Thursday 10/12
2.2: 1, 5, 9, 13, 25, 31 2.2: 2, 14, 16, 26, 32
HW 8 Sections 2.8, 2.9 due Thursday 10/19
2.3: 1, 3, 5, 15, 25 2.3: 2, 4, 6, 8, 16, 22
2.8: 7, 11, 15, 17, 19, 21, 23, 25, 31, 35 2.8: 8, 16, 18, 20, 24, 26, 32, 36
2.9: 1, 7, 9, 11, 13, 17, 19, 21, 23 2.9: 2, 8, 10, 12, 14, 20, 24
HW 9 Sections 4.1, 4.2, 4.3 due Thursday 10/26
4.1: 1, 9, 11, 13, 15, 17, 23 4.1: 12, 14, 16, 18
4.2: 1, 5, 9, 15, 17, 19, 23 4.2: 6, 10, 16, 24
4.3: 3, 7, 9, 13, 15, 21, 29 4.3: 4, 8, 10, 14, 16, 30
HW 10 Sections 3.1, 3.2 due Thursday 11/02
3.1: 3, 5, 9, 13, 15, 17, 19, 21, 37 3.1: 4, 6, 10, 14, 16, 18, 20, 22, 38
3.2: 7, 11, 15, 17, 19, 27, 31, 33, 37 3.2: 8, 12, 22, 26, 34
HW 11 Sections 5.1, 5.2 due Thursday 11/09
See homework note on Section 5.2 in Blackboard under Section 5.2!
5.1: 1, 5, 7, 9, 13, 15, 19, 21, 25, 29 5.1: 6, 8, 12, 16, 20, 24
5.2: 1, 3, 5, 11, 13, 19, 21 5.2: 2, 4, 8, 12, 14, 18, 24
HW 12 Section 5.3 due Thursday 11/16
See homework note on Section 5.3 in Blackboard under Section 5.3!
5.3: 1, 5, 9, 11, 15, 17, 21, 25, 27, 29, 31 5.3: 6, 10, 12, 16, 20, 24, 30, 32
HW 13 Section 7.1 due Tuesday 11/21 Note the date!
See homework note on Section 7.1 in Blackboard under Section 5.3 (not 7.1)!
7.1: 15, 17, 19 7.1: 14, 18, 22. See note in Section 5.3
HW 14 Section 6.1 due Thursday 11/30
6.1: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 23, 25 6.1: 2, 4, 6, 8, 10, 12, 14, 16, 18, 24, 26
HW 15 Sections 6.2, 6.3 due Thursday 12/07
6.2: 1, 5, 7, 9, 11, 13, 15, 17, 21, 23, 27, 29 6.2: 2, 8, 12, 14, 16, 20, 22, 30, 32
6.3: 3, 5, 7, 9, 11, 13, 15 6.3: 4, 6, 8, 10, 12, 14, 16
HW 16 Sections 6.4, 7.1 due Thursday 12/14 optional
6.4: 1, 3, 5, 7, 9, 11 6.4: 2, 4, 6, 8, 10, 12
7.1: 1, 5, 9, 11, 15, 17, 19, 25, 29 7.1: 10, 12, 14, 18, 22, 28
HW 17 See e-mail due Thursday 12/14 optional

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This page version 1.5, November 2006.