D.19. CHAPTER 19
Exercise 1
1. −1 + i
3. 2a + 2i
5. 3/4 + i/6
7. 4.03 + 1.20i
9. i
11. i
13. 14i
15. −15
17. −96i
19. −25
21. 6 − 8i
23. 8 + 20i
25. 36 + 8i
27. 42 − 39i
29. 21 − 20i
31, 33,
35.
37. 2 + 3i
39. p − qi
41. n + mi
43. 2i
45. 2
47. 2 + i
49. −5/2 + i/2
51.
Exercise 2
Exercise 3
7. 4.41 + 2.35i
9. 1.82 + 3.56i
11. − 3.44 − 4.91i
13. −7−3i
15. (p + q) + (p + q)i
17. −112 + 19i
19. −15 + 10i
21. 12 + 26i
23. 46 − 14i
29. −3i
31. 22
33. (32 + 8i)/17
Exercise 4
1. 43.6, 383
3. 8.30, 27.2
9. 36.4 lb vertical; 45.7 lb horizontal
11. 1440 lb; 23.0°
Exercise 5
1. 49.0 A
3. 897 V
11. 212 sin ωt
13. 424 sin (ωt − 90°)
15. 11 sin ωt
25. (a) v = 603 sin (ωt + 85.3°); (b) v = 293 sin (ωt − 75.5°)
Review Problems
27. (a) (x + 3i)(x − ...
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