An in-class exercise #1

Frank Ritter

23 December 2000

Name:

Date:

1. Explain what this is (sigma), and how does it work?     ·

2. Solve (expand) this equation:    (x+1)^3

3. Log10(10) = ?

4. 2^5 = ?

   3^3 = ?

5. Is {a b} a subset of {b c d e f}?

6. Define the natural numbers, integers, and real numbers.

7. What is the multiplicative inverse (in the real numbers) of 4?