MCS 221 PROBLEM ASSIGNMENTS

Fall 2000


Homework rules

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MCS-221 Problem Assignments

Chapter Practice problems* Problems to turn in Due date
1 Your choice 1.48-1.51: part (b) of each;
Write a coherent proof of Theorem 1.4.
T 9/12
1 1.55, 1.56, 1.59 F 9/15
2 2.72, 2.74
Law of Cosines picture
T 9/19
4 4.1, 4.5, 4.7, 4.10
If A is a 2x2 matrix with first row 2, 3
and second row 4, 3, and if
p(x) = x^2 - 5x - 6, calculate p(A).
4 4.34, 4.20, 4.21, 4.22, 4.50
4.61-4.65
4.97, 4.98, 4.107, 4.109, 4.111
5 5.3, 5.4, 5.5 Handout problems:
1. Prove K = {0,1} is a field under
mod 2 addition and multiplication.
2. Prove V = KxK is a vector space over K
under componentwise vector addition and
scalar multiplication.
5.87
10/17
5 5.30, 5.37, 5.39 5.91, 5.98, 5.105, 5.112
5.120 & find row, column, and null spaces
F 10/27
6 6.60, 6.62, 6.63, 6.68, 6.69 F 11/3
7 7.1, 7.4 7.54, 7.57, 7.58, 7.63, 7.64,
7.65, 7.66, 7.67, 7.71
F 11/17
8 8.27 8.40, 8.45, 8.46, 8.54, 8.66, 8.67 M 12/4
9 9.12, 9.22, 9.29, 9.65 Prove Theorem 9.5;
9.54, 9.55, 9.58, 9.69, 9.86
F 12/8

* These are merely some suggested problems. You should work as many problems as necessary to master the ideas.