Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question
73 please
![98. Mixed Practice What are the zeros of f(x) = 2 cos (3x) +1
476 CHAPTER 7 Analytic Trigonometry
72. cos 0 – sin (-0) = 0
71. cos 0 = -sin (-0)
75. 1 + sin 60 = 2 cos? 0
70, 2 sin 0 = 3(1 - cos (-0))
74. tan 0 = cot 0
78. 2 cos? 0 – 7 cos 0 - 4 = 0
73. tan 6 = 2 sin 0
77. 2 sin? 0- 5 sin 0 + 3 = (0
76. sin? 0 = 2 cos 0 + 2
81. tan? 0 =
sec 0
80. 4(1+ sin 0) = cos? 0
79. 3(1 – cos 0) = sin? 0
84. sec 0 = tan 0 + cot 0
83. sec? 0 + tan 0 = 0
N In Problems 85–96, use a graphing utility to solve each equation. Express the solution(s) rounded to two decimal place
86. x - 4 sin x = 0
82. csc? 0 = cot 0 + 1
87. 22x – 17 sin x = 3
85. x + 5 cos x = 0
90. sin x – cos x = x
89. sin x + cos x = x
88. 19x + 8 cos x = 2
93. x - 2 sin (2x) = 3x
91. x2 – 2 cos x = 0
92. x2 + 3 sinx = 0
96. 4 cos (3x) - e = 1, x>0
94. x2 = x + 3 cos (2x)
95. 6 sin x - e* = 2, x > 0
= 4 sin? x – 3
97. Mixed Practice What are the zeros of f(x)
on the interval [0, 27]?
on the interval [0, ]?
Conbing
Utlity
100 Mired Practice f(x) = 2 cos x](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F40a98c14-14b5-4853-87f0-b35f42381bba%2Fd7d0a76a-6598-4644-8a33-c72a259a9be7%2Fzeor5yc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:98. Mixed Practice What are the zeros of f(x) = 2 cos (3x) +1
476 CHAPTER 7 Analytic Trigonometry
72. cos 0 – sin (-0) = 0
71. cos 0 = -sin (-0)
75. 1 + sin 60 = 2 cos? 0
70, 2 sin 0 = 3(1 - cos (-0))
74. tan 0 = cot 0
78. 2 cos? 0 – 7 cos 0 - 4 = 0
73. tan 6 = 2 sin 0
77. 2 sin? 0- 5 sin 0 + 3 = (0
76. sin? 0 = 2 cos 0 + 2
81. tan? 0 =
sec 0
80. 4(1+ sin 0) = cos? 0
79. 3(1 – cos 0) = sin? 0
84. sec 0 = tan 0 + cot 0
83. sec? 0 + tan 0 = 0
N In Problems 85–96, use a graphing utility to solve each equation. Express the solution(s) rounded to two decimal place
86. x - 4 sin x = 0
82. csc? 0 = cot 0 + 1
87. 22x – 17 sin x = 3
85. x + 5 cos x = 0
90. sin x – cos x = x
89. sin x + cos x = x
88. 19x + 8 cos x = 2
93. x - 2 sin (2x) = 3x
91. x2 – 2 cos x = 0
92. x2 + 3 sinx = 0
96. 4 cos (3x) - e = 1, x>0
94. x2 = x + 3 cos (2x)
95. 6 sin x - e* = 2, x > 0
= 4 sin? x – 3
97. Mixed Practice What are the zeros of f(x)
on the interval [0, 27]?
on the interval [0, ]?
Conbing
Utlity
100 Mired Practice f(x) = 2 cos x
Transcribed Image Text:In Problems 61–84, solve each equation on the interval 0 <0 < 2n.
Tadel b
() heg sh
61. 2 cos 0 + cos 0 = 0
62. sin? 0 – 1 = 0
63. 2 sin? 0 – sin 0 – 1 = 0
64. 2 cos? 0 + cos 0 – 1 = 0
65. (tan 0 – 1) (sec 0 – 1) = 0
66. (cot 0 + 1)| csc 0 –
67. sin? 0 – cos? 0 = 1 + cos 0
68. cos² 0 – sin? 0 + sin 0 = 0
69. sin² 0 =
6(cos(-0) + 1)
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