sin 2x 29. sin x cos 2r = sec x cos X
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 82E
Related questions
Question
Answer question 29
![N- NI-
24. cos 40 = 8 cos“ e - 8 cos e + 1
58. cot 0 =
In Exercises 25-32, verify each identity.
25. costx - sin' x
Cos 2r
59. sin 0 =
26. 1 + cos 2x + 2 sinx = 2
61. sec 0 =
1 + sin 2x
27.
cos x + sin x
cos 2r
sin x
cos x - sinx
In Exercises
cos 2r
28.
sin 2r
csc 2x
63. ( sin
cos X
sin 2x
29.
sin x
cos 2r
sec x
64. sin
COs X
cos 3x
30.
sin 3x
cos 2r
sin 3x cos x
sin x
65. 2 cos?
COS X
sin 3x
31. tan 2x + tan x =
66. 2 sin?
2.
cos 2r cos x
32. tan 2x - tan x = tan x sec 2x
67. tan
In Exercises 33-42, use the power-reducing identities to rewrite
each expression to one that contains a single trigonometric func-
tion of power 1.
68. tan](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcf75519a-4b73-4600-b1a2-6168f4806ba2%2F5aa2574e-7752-4e73-8c5b-0b927c95eac1%2F72z53tr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:N- NI-
24. cos 40 = 8 cos“ e - 8 cos e + 1
58. cot 0 =
In Exercises 25-32, verify each identity.
25. costx - sin' x
Cos 2r
59. sin 0 =
26. 1 + cos 2x + 2 sinx = 2
61. sec 0 =
1 + sin 2x
27.
cos x + sin x
cos 2r
sin x
cos x - sinx
In Exercises
cos 2r
28.
sin 2r
csc 2x
63. ( sin
cos X
sin 2x
29.
sin x
cos 2r
sec x
64. sin
COs X
cos 3x
30.
sin 3x
cos 2r
sin 3x cos x
sin x
65. 2 cos?
COS X
sin 3x
31. tan 2x + tan x =
66. 2 sin?
2.
cos 2r cos x
32. tan 2x - tan x = tan x sec 2x
67. tan
In Exercises 33-42, use the power-reducing identities to rewrite
each expression to one that contains a single trigonometric func-
tion of power 1.
68. tan
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