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. pqi

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 − ...

Get Technical Mathematics, Sixth Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.