Establish the identity. cos (α + β) = cot a cot B- 1 sin a sin B Choose the sequence of steps below that verifies the identity. O A. cos (α + β) cos a cos B- sin a sin B cos a cos B sin a sin ß = cot a cot ß-1 sin a sin B sin a sin B sin a sin ß sin a sin B O B. cos (a + B) cos a cos ß + sin a sin ß cos a cos B sin a sin B = cot a cot B-1 sin a sin B sin a sin B sin a sin B sin a sin B OC. cos (a + B) sin a sin B+ cos a cos B sin a sin ß cos a cos B = cot a cot B-1 + sin a sin B sin a sin B sin a sin B sin a sin B OD. cos (α + β ) cos a cos ß - sin a sin B cos a cos B sin a sin B = cot a cot B- %3D sin a sin B cos a cos B cos a cos B cos a cos B
Establish the identity. cos (α + β) = cot a cot B- 1 sin a sin B Choose the sequence of steps below that verifies the identity. O A. cos (α + β) cos a cos B- sin a sin B cos a cos B sin a sin ß = cot a cot ß-1 sin a sin B sin a sin B sin a sin ß sin a sin B O B. cos (a + B) cos a cos ß + sin a sin ß cos a cos B sin a sin B = cot a cot B-1 sin a sin B sin a sin B sin a sin B sin a sin B OC. cos (a + B) sin a sin B+ cos a cos B sin a sin ß cos a cos B = cot a cot B-1 + sin a sin B sin a sin B sin a sin B sin a sin B OD. cos (α + β ) cos a cos ß - sin a sin B cos a cos B sin a sin B = cot a cot B- %3D sin a sin B cos a cos B cos a cos B cos a cos B
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
Related questions
Question
![Establish the identity.
cos (a + B)
= cot a cot B-1
sin a sin B
Choose the sequence of steps below that verifies the identity.
O A.
cos (a + B)
cos a cos B- sin a sin B
os a cos 3
sin a sin B
3D cot a cot В- 1
%3D
sin a sin B
sin a sin B
sin a sin B
sin a sin B
В.
cos (α + β)
cos a cos B+ sin a sin B
cs a cos B
sin a sin B
+
= cot a cot B- 1
%3D
sin a sin B
sin a sin B
sin a sin B
sin a sin ß
С.
cos (a + B)
sin a sin B + cos a cos B
sin a sin B
os a cos B
+
3D cot a cot В- 1
%3D
sin a sin B
sin a sin B
sin a sin B
sin a sin B
D.
cos (α + β)
cos a cos B- sin a sin B
cos a cos B
sin a sin B
3 cot a cot В-1
%3D
sin a sin B
cos a cos B
cos a cos B
cos a cos B](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3f7858f2-4558-4a97-afcd-256e507c1a66%2F09b9a3dd-ec7d-4b81-ae3c-2f1fdff67d20%2Fy49keos_processed.png&w=3840&q=75)
Transcribed Image Text:Establish the identity.
cos (a + B)
= cot a cot B-1
sin a sin B
Choose the sequence of steps below that verifies the identity.
O A.
cos (a + B)
cos a cos B- sin a sin B
os a cos 3
sin a sin B
3D cot a cot В- 1
%3D
sin a sin B
sin a sin B
sin a sin B
sin a sin B
В.
cos (α + β)
cos a cos B+ sin a sin B
cs a cos B
sin a sin B
+
= cot a cot B- 1
%3D
sin a sin B
sin a sin B
sin a sin B
sin a sin ß
С.
cos (a + B)
sin a sin B + cos a cos B
sin a sin B
os a cos B
+
3D cot a cot В- 1
%3D
sin a sin B
sin a sin B
sin a sin B
sin a sin B
D.
cos (α + β)
cos a cos B- sin a sin B
cos a cos B
sin a sin B
3 cot a cot В-1
%3D
sin a sin B
cos a cos B
cos a cos B
cos a cos B
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