College Algebra, 4th Edition

Concepts and Vocabulary

1. 1. positive integers

2. 3. 1

3. 5. False

4. 7. True

5. 9. $a_1=1,a_2=4,a_3=7,a_4=10$

6. 11. $a_1=0,a_2={\displaystyle \frac{1}{2}},a_3={\displaystyle \frac{2}{3}},a_4={\displaystyle \frac{3}{4}}$

7. 13. $a_1=-1,a_2=-4,a_3=-9,a_4=-16$

8. 15. $a_1=1,a_2={\displaystyle \frac{4}{3}},a_3={\displaystyle \frac{3}{2}},a_4={\displaystyle \frac{8}{5}}$

9. 17. $a_1=1,a_2=-1,a_3=1,a_4=-1$

10. 19. $a_1={\displaystyle \frac{5}{2}},a_2={\displaystyle \frac{11}{4}},a_3={\displaystyle \frac{23}{8}},a_4={\displaystyle \frac{47}{16}}$

11. 21. $a_1=0.6,a_2=0.6,a_3=0.6,a_4=0.6$

12. 23. $a_1=-1,a_2={\displaystyle \frac{1}{2}},a_3=-{\displaystyle \frac{1}{6}},a_4={\displaystyle \frac{1}{24}}$

13. 25. $a_1=-{\displaystyle \frac{1}{3}},a_2={\displaystyle \frac{1}{9}},a_3=-{\displaystyle \frac{1}{27}},a_4={\displaystyle \frac{1}{81}}$

14. 27. $a_1={\displaystyle \frac{e}{2}},a_2={\displaystyle \frac{e^2}{4}},a_3={\displaystyle \frac{e^3}{6}},a_4={\displaystyle \frac{e^4}{8}}$

15. 29.

    

16. 31.

    

17. 33.

    

18. 35.

19. 37.

20. 39. $a_n=3n-2$

21. 41. $a_n={\displaystyle \frac{1}{n+1}}$

22. 43.