1. 
The series is > both an arithmetic and a geometric series

2. 
0.5, 0.25, 0.125, ... is a(n) > arithmetic series

3. 
The nth partial sum of a geometric series is >

4. 
Find >

5. 
The sum of the infinite geometric series , where a ≠ 0, is > for r < 1, undefined otherwise

6. 
Find . >

7. 
Let a be a constant. If the series converges then we must have > a < 1

8. 
We can write the decimal 0.421421421... as a rational number using an infinite geometric series with r = >

9. 
Which of the following expressions could be considered to be in "closed form"? (I) a + ar + ar^{2} + ... + ar^{n – 1} (II) (III) > (II) and (III)

10. 
Every year Leopold puts $500 into his bank account and then earns 5% interest on the total contents of his account. At the end of the first year, his bank account contains $525. How many dollars are in his bank account at the end of the nth year? >
