## 4.14 Ans Key

4.14 Partial Ans Key

*must show work

1. arithmetic d=5

2. geometric, r=1/2

3. geometric, r = -1/2

4. geometric, r =root2

5. arithmetic d=0 or geometryc r=1

6. a_n = 5 (2)^(n-1)

9. a_n = 36 (1/3)^(n-1)

11. a_n = 1/2 (10)^(n-1)

13. a_n = 3 (2)^ (n-1)

Last modified: Wednesday, 7 December 2016, 3:50 PM