9. Prove each identity. cos 0 COS sin 0 = 1 – tan 6 a) cos² 0 + sin 0 cos 0 %3D b) tan? x – sin? sin? x tan x %3D - 1 --1 – cos² x cos“ x c) tan? x – cos²x = 1 1 d) 1 + cos 0 %3D 1 cos 0 sin 0
9. Prove each identity. cos 0 COS sin 0 = 1 – tan 6 a) cos² 0 + sin 0 cos 0 %3D b) tan? x – sin? sin? x tan x %3D - 1 --1 – cos² x cos“ x c) tan? x – cos²x = 1 1 d) 1 + cos 0 %3D 1 cos 0 sin 0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 66E
Related questions
Question
![9. Prove each identity.
cos? 0 – sin? 0
– tan 0
a)
cos² 0 + sin 0 cos 0
b) tan x -
sin x =
sin? x tan x
c) tan? x
cos² x =
1.
– 1
cos? x
cos x
1
1
2.
(P
1 + cos 0
cos 0
sin 0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8c971627-571c-4ae6-b412-bd4c411a1999%2F87913b1f-17ac-4449-ad77-26e57047f3ef%2Fjuc03e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9. Prove each identity.
cos? 0 – sin? 0
– tan 0
a)
cos² 0 + sin 0 cos 0
b) tan x -
sin x =
sin? x tan x
c) tan? x
cos² x =
1.
– 1
cos? x
cos x
1
1
2.
(P
1 + cos 0
cos 0
sin 0
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