9. 0.78
11. 0.7
13. −1.7
15. 7.3
17. 163
19. 0.56
21. ln (x)+ln (x−1)
23. ln (x +1)−2 ln (x−2)
25. 12loga x+3 loga y
27. 13logax−13loga y
29. 14log2x+12log2 y−34
31. 12 log (x2+1)−log (x +3)
33. log3(x−1)+log3(x+1)−log3(x−2)−log3(x+2)
35. 2 logb x+3 logb y+logb z
37. ln x +12 ln (x−1)−ln (x2+2)
39. 2 ln (x +1)−ln (x−3)−12 ln (x +4)
41. ln (x +1)+12 ln (x2+2)−12 ln (x2+5)
43. 3 ln x +4 ln(3x+1)−12 ln(x2+1)+5 ln(x +2)−2 ln(x−3)
45. log2 (7x)
47. log 3x+2x
49. ln y2x−−√
51. log (z x−−√y)
53. log2 (zy2)1/5
55. ln (xy2z3)
57. log x3x2+4−−−−−√y
59. ln (x2x2+1−−−−−√)
61. 1.4036⋅10217
63. 9.3762⋅101897
65. 234567
67. 362
69. 2.322
71. −1.585
73. 1.760
75. 3.6
77. 12
79. 1
81. 18
83. 2
85. y=2−log x
87. y=2−ln x
89. y=1+3 log5 x
91. y=−1+5 log2 x
93. ≈10.7 yr
95. ≈10.4 hr
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