# Homework Hints 3-2

### Note: Homework Hints are given only for the Level 1 and Level 2 problems.

However, as you go through the book be sure you look at all the examples in the text. If you need hints for the Level 3 problems, check some sources for help on the internet (see the LINKS for that particular section. As a last resort, you can call the author at (707) 829-0606.

On the other hand, the problems designated “Problem Solving” generally require techniques that do not have textbook examples.

There are many sources for homework help on the internet.

Algebra.help
Here is a site where technology meets mathematics. You can search a particular topic or choose lessons, calculators, worksheets for extra practice or other resources.
http://www.algebrahelp.com/

Dr. Math is a registered trademark. This is an excellent site at which you can search to see if your question has been previously asked, or you can send your question directly to Dr. Math to receive an answer.
http://mathforum.org/dr.math/

Quick Math
This site provides online graphing calculators. This is especially useful if you do not have your own calculator.
http://www.quickmath.com/

The Math Forum @ Drexel
This site provides an internet mathematics library that can help if you need extra help. For additional homework help at this site, click one of the links in the right-hand column.
http://mathforum.org/

Problems 1-4
Even these the IN YOUR OWN WORDS are not assigned by your instruction, you should take about five minutes doing each of these.
Problems 5-14
See Examples 1-3 and Table 3.5.
Problems 15-18
See Examples 1-3 and Table 3.6.
Problems 19-22
See Examples 1-3 and Table 3.5.
Problem 23
Go slow on this one…. See Example 2.
Problem 24
Read this problem a couple of times before proceeding….. See Example 2.
Problems 25-26
These problems are designed to get you to look carefully at Example 6.
Problems 25-27
For each statement in Problems 25-27, find the corresponding statement in Table 3.7.
Problems 26
These problem is designed to get you to look carefully at Example 6.
Problem 27
For each statement in parts a and b, find the corresponding statement in Table 3.7.

For Problems 28-30, first change to symbolic form and then find the corresponding statement in Table 3.7.
Problems 31-38
Read the material in the subsection entitled “CONDITIONAL.”
For example, look at Problem 31, and rewrite “All triangles are polygons.” as “If it is a triangle, then it is a polygon.” Look at the table in the subsection entitled “TRANSLATIONS FOR THE CONDITIONAL” for other translations.
Problems 39-42
In the givens statement p implies q determine the truth or falsity of p and q, and then use Table 3.6 to determine the truth or falsity of the compound statement.
Problems 43-46
Determine the truth or falsity of p and q for each problem. Then, write down the given symbolic statement, and under each proposition write “T” or “F” as appropriate. Finally, simplify as shown in the symbolic statements at the bottom of Example 5.
Problems 47-52
See Example 5. Be sure to choose a variable for each simple statement (and not for any compound statements).