1. Unit 1 Test #3 Study Guide

3. 6. Write the first 5 terms of the sequence defined recursively
6. Write the first 5 terms of the sequence defined recursively. a1 = 12, ak+1 = -5ak

4. 7. Find the sum

5. 8. Simplify

6. 9. State whether the given sequence is arithmetic or geometric

7. 10. State whether the given sequence is arithmetic or geometric

8. 11. Write the first 5 terms: a1 = -2 r = 1/2

9. 12. Find the rule for the arithmetic sequence having the common difference d = 4 and a12 = 32

10. 13. Find the nth term of the geometric sequence 2, 4, 8, …

11. 14. The first two terms of the arithmetic sequence are given
14. The first two terms of the arithmetic sequence are given. Find the indicated term. a1 = 3, a2 = 9, a20 = ?

12. 15. Find the sum … + 66

13. 16. Determine whether the infinite geometric series /6 + 1/36 +… has a sum. If so, find the sum.

16. 19. Simplify
15!
11!