**Math 20F - Linear Algebra****
- Instructor:
Sam Buss - Spring 2003**

**Written Homework Assignments**

**Handing in homeworks: **Homework assignments are due in
class on Friday. Late homework assignments are accepted only in
exceptional circumstances.

**Important:** Label your homework with (a) **your name, **(b) **your
student ID, **and (c) **your section time.** Your name should be
identifiably similar to your name in the official UCSD course roster on student
link. Your section time is used only to help return the homework to you.

We do not yet know whether we will have resources to grade homework assignments, but we will at least track whether they are done. They are a required part of the course!

If you work jointly with other students, you must still do your own work. This means you must write up your solution yourself, not directly copying from another source. If someone shows you an answer, you should wait at least 10 minutes, and then try to write up the answer on your own. This is to ensure you are really learning the material.

**Homework #1 - Due Friday, April 11.
**Section 1.1, pp. 11-13: Problems 1(a,c), 2(a),
4(a), 6(a,d), 7, 10.

Section 1.2, pp. 28-32. Problems 1, 2(a,b,c,e), 3(a,b,c,d), 9.

**Homework #2 - Due Friday, April 18.
** Section 1.3, pp. 62-67. Problem 22.

Section 1.4, pp. 76-77. Problems 1, 2, 5, 7(a,c), 9(a,c,e,f), 16.

Section 1.5, pp. 87-91. Problems 4(a,c), 13.

For problem 1.5.4(a,c): show first the block form of the products.

Section 2.1, pp. 105-107. Problems 1, 2, 3(a,d,g), 5, 6, 11.

**Homework #3 - Due Friday, April 25. - Selected Answers online
in postscript and PDF formats.
(See also answers in the book.)
**Section 2.2, pp. 112-115. Problems 1, 2, 3(a,d,f), 7, 11, 12, 13.

Section 3.1, pp. 131-133. Problems 11, 13.

Section 3.2, pp. 142-144. Problems 1(c,d,e), 3(a,c,d,f), 4(a,d), 5, 9(c,d), 10(a,c,e), 11.

**Homework #4 - Due Friday, May 2.
** Section 3.3, pp. 154-156. Problems 2(a,c,e),
4(a,c), 6(a,c), 11, 12..

Section 3.4, pp. 161-162. Problems 2(a,c,e). (Note problem #2 of section 3.4 uses problem #2 of section 3.3).

**Homework #5 - Due Friday, May 9.
** Section 3.1, pp. 131-133. Problem 1.

Section 3.5, pp. 173-174. Problems 1(a,c), 2(a,c), 5(a;b.i,b.ii), 6.

Section 3.6, pp. 180-183. Problems 1(a,b), 2(a,c), 3, 6, 7.

**Homework #6 - Due Friday, May 16.
** Section 4.1, pp. 195-198. Problems 1, 3, 6.

Section 4.2, pp. 208-212. Problems 3(a,c), 5.

Section 5.1, pp. 237-239. Problems 1(a,b,c), 2(a,b,c), 4, 5, 8(b), 10, 11.

Section 5.2, pp. 247-249. Problems: 1(a,d), 4, 5, 6, 9, 12(a).

**Homework #7 - Due Friday, May 23. (Note this is the day of
the midterm!)
** Section 5.3, pp. 258-260. Problems 1(a,c), 2(a,c),
3(a), 4(a), 5, 6.

**Homework #8 - Due Friday, May 30.
** Section 5.5, pp. 286-289. Problems 1, 2, 3, 6, 8,
16.

Section 5.6, pp. 297-299. Problems 1, 3, 4, 9, 11.

**Homework #9 - Due Friday, June 6.
** Section 6.1, pp. 323-326. Problems 1(a,c,e,f,g,k), 2, 3,
4, 15, 19, 22, 23.

Section 6.3, pp. 351-354. Problems: 1(a,c), 2(a,c), 3(a,c), 4(a), 8(a), 9, 10.