1. Geometric Series 1 2 3 Definitions & Equations
Writing & Solving Geometric Series 3
Practice Problems

2. Definitions
Geometric Series
The sum of terms in a geometric sequence

3. Geometric Series Addition of terms in an geometric sequence
Geometric Sequence Geometric Series or

4. Finding the Sum of the First n Terms
In the book Roots, Alex Haley traced his family history back many generations. If you could trace you family back 15 generations, how many ancestors would there be?

5. Use the Alternate Formula for a Sum
Find the sum of a geometric series for which a1=15,625 , an=-5, and

6. Finding the First Term of a Series
Find a1 in a geometric series for which 39,360 and r=3.

7. Evaluate a Sum Written in Sigma Notation