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# Series

# Finite Geometric Series Exercises

### Example 1

For the series, identify *a*, *r*, and *n*. Find

1. *S*_{7} for the geometric series with *a* = 3 and *r* = 0.2.

2.

3.

4.

5.

### Example 2

Determine whether the expression is in closed form or not.

### Example 3

Determine whether the expression is in closed form or not.

### Example 4

Determine whether the expression is in closed form or not.

0.6 + 0.6(0.8) + 0.6(0.8)^{2} + ... + 0.6(0.8)^{n}