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Practice and Applications

7. $10 - j$
9. $6 + 2 j$
11. $25 + 30 j$
13. $33 + 6 j$
15. $\frac{1}{85} (21 + 18 j)$
17. $- 2 - 3 j$
19. $\frac{1}{10} (- 12 + 9 j)$
21. $x = - 3, y = - 2$
23. $x = \frac{10}{13}, y = \frac{11}{13}$
25. $3 + 11 j$
27. $4 + 8 j$
29. $1.41 (\cos 315 ° + j \sin 315 °) = 1.41 e^{5.50 j}$
31. $80.1 (\cos 254.1 ° + j \sin 254.1 °) = 80.1 e^{4.43 j}$
33. $4.67 (\cos 76.8 ° + j \sin 76.8 °); 4.67 e^{1.34 j}$
35. $5000 ∠ \underline{0 °}, 5000 e^{0 j}$
37. $- 1.41 - 1.41 j$
39. $- 2.789 + 4.162 j$
41. $0.19 - 0.59 j$
43. $26.31 - 6.427 j$
45. $1.94 + 0.495 j$
47. $- 728.1 + 1017 j$
49. $15 (\cos 84 ° + j \sin 84 °)$
51. $20 ∠ 263 °$

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