Practice Test A

1. $a_{1} = 3, a_{2} = - 9, a_{3} = - 21, a_{4} = - 33, a_{5} = - 45;$ $a_{1} = 3, a_{2} = - 9, a_{3} = - 21, a_{4} = - 33, a_{5} = - 45;$ arithmetic sequence
2. $a_{1} = - 6, a_{2} = - 12, a_{3} = - 24, a_{4} = - 48, a_{5} = - 96;$ $a_{1} = - 6, a_{2} = - 12, a_{3} = - 24, a_{4} = - 48, a_{5} = - 96;$ geometric sequence
3. $a_{1} = - 2, a_{2} = - 1, a_{3} = 2, a_{4} = 11, a_{5} = 38$ $a_{1} = - 2, a_{2} = - 1, a_{3} = 2, a_{4} = 11, a_{5} = 38$
4. $\frac{1}{n}$ $\frac{1}{n}$
5. $a_{7} = 21$ $a_{7} = 21$
6. $a_{8} = - \frac{13}{128}$ $a_{8} = - \frac{13}{128}$
7. 590
8. $\frac{93}{128}$ $\frac{93}{128}$
9. $\frac{2}{11}$ $\frac{2}{11}$
10. 1
11. $16 x^{4} - 32 x^{3} + 24 x^{2} - 8 x + 1$ $16 x^{4} - 32 x^{3} + 24 x^{2} - 8 x + 1$
12. 8x
13. 1024
14. 72
15. 21
16. 60
17. 6,760,000
18. $\frac{5}{12}$ $\frac{5}{12}$
19. $\frac{5}{6}$ $\frac{5}{6}$
20. $\frac{7}{51}$ $\frac{7}{51}$

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Table of Contents for Practice Test A