Gerry Wildenberg
Mathematical and
Computing Sciences
General instructions:
- As indicated in the syllabus, repeat the question (or
at least a brief version of the question.)
- Neatness counts. If I can't read your homework, or it's
very difficult to read your homework, I won't give it full credit.
- If the problem says "justify your answer",
then do the following. If answer is true, cite the theorem or definition
by copying it from the text and (if appropriate) explain how it applies.
If a statement is false, explain why by using a theorem, definition, or
example. In addition you may want to add the correct statement.
- No credit for just saying "True" or
"False". The justification is the important part.
Problems for section 7, functions, pp73-77 of
Lay.
1.
7.1 a-f
2.
7.2 a-f
3.
7.3 b, d
4.
7.6 a-c
5.
7.7 a-g
6.
7.9 a-f Hint: I
believe that three of the six proofs are correct. Please be sure to make clear where the
wrong proofs are wrong and why the
correct proofs are correct.
7.
7.10
8.
7.11 b
9.
7.12 a,b
10. 7.17 a,b Hint: One is true, one is false.
11. 7.26
Hint: I believe the same
answer can be used for 7.26, 7.27, and 7.28
12. 7.27
13. 7.28