Math 2141 Homework Assignments 
Tentative List

The following exercises may be found in the text. Other exercises may be posted on this site or handed out in class.

* means potentially difficult

Section
Problems (set up integrals but don't evaluate them till we learn how to do so)

Rewrite the problem given in New and Important
I.2.5
1,2,5,6

Prove the trichotomy and transitivity properties of the ordering of the reals and/or rationals

Show that every rational number a/b has a decimal expansion which is either terminating or repeating.

Show that the distance function d(x,y) := |x-y| has the following properties:
a). |x-y| >= 0 and is = 0 exactly when x = y.
b) |s-y| = |y-x| for any x and y in Q or R.
c) for any three numbers x,y and z, |x-y| <= |x-z| + |z-y|. (This is called the triangle inequality.)
I.4.9
2,3
I.3.12
1,3,4,7,8,10,11
I.2.5
1,2,5,6
I.4.4
1b,c,2,12 (use blue horses not girls with blue eyes)
I.4.7 1b,f,2,9
I.4.10
10,13a
1.6
4a,b,c,e,5a,b,e,6a,b,9a,b
1.7
1A,B,C,2,3
1.11
1a,c,2e,3a,4a,b
1.15
1a,e,2,7*,8,11
1.26
1,2,16,17,20,21,23
2.4
3,11,15,17,19,21
2.8
1,2,3,18,23
2.11 1,10,13 (use a trig identity)
2.13
2,8,13
2.17
3,11,13
2.19
1,5,7,15,17,19
3.6
1,6,11,12,21,27,32
3.8 1,4,11,12,19,20
3.11 1,2a,3,5,6
3.15
2,4,5
3.20
1,2,6,8
4.1-2
read these sections
4.6
1,6,what do 14&15 mean?,28,33,38
4.9
1,3,9,10,15
4.12 2,10,12,18,20,24,29
4.15
1,2,4,8a
4.19
2,10
4.21
2,3,4,5,16
4.23
do what you'd like
5.5
1,4,5,8,12,14,17,22a,26a,b,c
5.8
1,2,6,7,24
6.9
2a,4,8,9,16,17,35
6.17
1,10,11,14,18,29,35a,39
6.22
3,6,12,19,29,30
6.25
1,4,9,13,39,