Exercises 11.1, page 327

  1. 1. y24x2

  2. 3. 3416

  3. 5. x5

  4. 7. 2a4

  5. 9. c9

  6. 11. x5y2

  7. 13. 1125

  8. 15. 4π2x2

  9. 17. 2n25a

  10. 19. 1

  11. 21.  − 9

  12. 23. 3x2

  13. 25. a3343x3

  14. 27. n1216

  15. 29. 3a3b6

  16. 31. 1a + b

  17. 33. 4x3 + 2y2x3y2

  18. 35. 83an

  19. 37. b3432a

  20. 39. 4t4V4

  21. 41. 3a6 + 81a8

  22. 43. 109

  23. 45. R1R2R1 + R2

  24. 47. 4n2 − 4n + 1n4

  25. 49. 899

  26. 51. x + yxy

  27. 53. t2 + t + 2t2

  28. 55. 2DD2 − 1

  29. 57. No

  30. 59.

    1. 45

    2. 210

  31. 61.

    1. (ab) − n = 1(ab)n = 1anbn = bnan = (ba)n

    2. 303.55182 = 303.55182

  32. 63. n = 3

  33. 65. Yes

  34. 67. 16(4a)

  35. 69. 7

  36. 71.  ⋅ m

  37. 73. J / s3

  38. 75. m · s − 1 = (m · s − 2)1 (s)1 ;  So p = r = 1

  39. 77. $368.33

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