1. -3 + 5i

  2. 3 + 4i

  3. 2/5 + 4/5 i

  4. -5 - i

  5. 5 - i

  6. 2 + 2i

  7. 3(cos 315° + i sin 315°)

  8. 6(cos 50° + i sin 50°)

  9. 4(cos 70° + i sin 70°)

  10. 8(cos 21° + i sin 21°)

  11. -4

  12. + i and - - i

  13. 2(cos 30° + i sin 30°), 2(cos 150° + i sin 150°), 2(cos 270° + i sin 270°)

  14. (2, -225°), (-2, -45°), (-2, 315°), - + i

  15. (3, 180°)

  16. (4, 120°)

  17. x2 + y2 = 4y

  18. r (cos q + 2 sin q) =1

  19. graph

Chapter Pretest
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