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Exercises 12.5, page 358

1. $8.50 e^{3.95 j}$
3. $3.00 e^{1.05 j}$
5. $0.450 e^{4.93 j}$
7. $375.5 e^{- 1.666 j}$
9. $0.515 e^{3.46 j}$
11. $4.06 e^{- 1.07 j} = 4.06 e^{5.21 j}$
13. $9245 e^{5.172 j}$
15. $5.00 e^{5.36 j}$
17. $36.1 e^{2.55 j}$
19. $6.37 e^{0.386 j}$
21. $825.7 e^{3.836 j}$
23. $3.00 ∠ \underline{28.6} °; 2.63 + 1.44 j$
25. $464 ∠ \underline{106.0 °}; - 128 + 446 j$
27. $3.20 ∠ \underline{50.0 °}; 2.06 + 2.45 j$
29. $1724 ∠ \underline{137.0 °}; - 1261 + 1176 j$
31. $- 18.2 + 9.95 j, 20.7 ∠ \underline{151.3 °}$
33. $- 89.1 - 2750 j; 2750 ∠ \underline{268.1 °}$
35. $6.43 e^{0.952 j}$
37. $3.91 e^{0.285 j} ohms; 3.91 Ω$
39. $3.17 \times 10^{- 4} e^{0.478 j} 1 / Ω$

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