Math 415 Fall 2003 Homework Problem List

W. Freedman 

 

Presentation: At the top of the paper in the right hand corner, please put your full name, the homework number,

the course number, and the assignment, including page numbers.  Multiple pages must be stapled together. 

Please write legibly on only one side of the page.  Messy or annoying work (food stains, for example) receives zero credit and I will hand it

back unread.  See the “Guidelines for Homework” for further important information about how to write up your homework assignments.

 

Grading of homework:  I will announce the due dates in class.  Generally, I will grade three problems from each assignment. 

Each problem is worth three points.  You receive one additional point if you have made a good attempt for all the assigned questions,

your work is neat, your paper is stapled, and all the information for the assignment, as in the box below, is present. 

Each assignment is worth 10 points.  I may also give bonus homework points for excellence in content and presentation. 

For example, well-done computer-generated graphics (if appropriate), outstanding solutions, etc., can earn bonus points. 

I will deduct points if you do not follow the “guidelines”.  I will provide solutions for all problems assigned.  I will not accept late

homework under any circumstances; however, there will be opportunities to do extra credit, and I will drop the lowest two scores.

 

 

Additional Info: From the preface of our text (italics mine): “As in earlier editions, the text also includes more than a hundred

practice problems.  Generally, these problems are not very difficult, and it is intended that students should stop to work them

as they read.  The answers are given at the end of each section just prior to the exercises.  The students should also be

encouraged to read (if not attempt) most of the exercises.  They are viewed as an integral part of the text and vary

 in difficulty from the routine to the challenging.  Those exercises that are used in a later section are marked with an

asterisk.  Hints for many of the exercises are included in the back of the book.  These hints should be used only after a

serious attempt to solve an exercise has proved futile.

 

 

Please see the hard copy version, or the MS-Word version for the footnotes, which clarify or give hints to the problems.

 

Homework No.

Section and Page Numbers

Assignment

HW 1

§5, p. 41-43

#2, 6, 10abe, 13, 14, 18d

HW 2

§7, p. 64-67

#2, 3d, 4, 11g, 14

HW 3

§8, p. 76-79; and

§10, p. 91-95

#2, 9; and

#4, 6, 8, 10, 13c, 14

HW 4

§11, p. 102-104

#2bc, 3adg, 4, 6, 7, 8, 9

HW 5

§12, p. 112-115

#2, 4bdfhjln

HW 6

§12, p. 112-115

#7, 8, 12, and problem (a) below

HW 7

§13, p. 120-122

#2abghi, 4, 5, 7

HW 8

§13, p. 120-122

#2cdef, 6, 9, 10[1], 11, 13

HW 9

§13, p. 120-122, and

§14, p. 127-129

#17, 18; and

#3, 5a[2]

HW 10

§14, p. 127-129, and

§15, p. 136-138

#2, 4, 5b, 8[3]; and

#1ab, 4

HW 11

§15, p. 136-138

#1c, 5, 6, 10, 11

HW 12

§16, p. 146-147

#2ab, 4ab, 5ab

HW 13

§16, p. 146-147

#5ef, 6, 10, 11[4], 12

HW 14

§17, p. 154-155

#1, 2, 3, 5bdfhjl, 6

HW 15

§17, p. 154-155

#7, 8, 12, 15c, 16[5]

HW 16

§18, p. 161-162

#1, 3c, 4, 6

HW 17

§19, p. 168-170

#1abcd, 2ab, 5abef

HW 18

§19, p. 168-170

#1e, 2cde, 4, 11

HW 19

§32, p. 273-275

#2, 3, 4, 5a-e

HW 20

§32, p. 273-275

#5fh, 8, 11, 12, 13

HW 21

§33, p. 282-284

#2ab, 3abdefhn, 4b

HW 22

§33, p. 282-284

#5a-f, 6, 7, 11[6], 17

HW 23

§34, p. 289-290

#1, 2, 3abcdfj

HW 24

§34, p. 289-290

#4, 5ad, 6, 7

HW 25

§20, p. 177-179

#1, 3[7]acfgh, 4ac

HW 26

§20, p. 177-179

#5, 6, 11, 12

HW 27

§21, p. 186-187

#2, 3, 6, 8

HW 28

§21, p. 186-187

#10, 13, 15, 16

HW 29

§22, p. 192-194

#1, 3acegi, 4

HW 30

§22, p. 192-194

#7, 10, 12[8], 16

HW 31

§23, p. 199-201

#2, 3abcdg

HW 32

§23, p. 199-201

#4a, 5, 9, 11

 

(a) A subset  is bounded if and only if there exists  such that , that is, such that  for all .



[1] The term “infinite set” means that  contains infinitely many distinct points, not that  is unbounded.  For example, the closed unit interval  is an infinite set.

[2] Use the definition of compactness, that is, Definition 14.1, page 123.

[3] Again, “definition of compactness” means Definition 14.1, page 123.

[4] This is usually called the “Squeeze Theorem”.  In this problem, you must prove that  exists.  You cannot assume this.

[5] Hint: Combine Theorem 17.7 and Theorem 17.13.

[6] Extra Credit: #13, 14

[7] Use only algebraic simplification and limit laws, not L’Hopital’s Rule.

[8] Use the previous problem, #22.11, p. 193.