Verify that the equation is an identity. cot a + 1 1+ tan a cot a - 1 %3D 1- tan a
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section: Chapter Questions
Problem 18RE
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Question
![Verify that the equation is an identity.
cot a + 1
1+ tan a
cot a – 1
1.
- tan a
To verify the identity, start with the more complicated side and transform it to look like the other side. Choose the correct transformations and transform the expression at each step.
cot a + 1
%3D
cot a – 1
Rewrite the numerator and denominator as a single fraction.
%3D
Multiply by the reciprocal.
1+ tan a
1- tan a](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96e8a255-6b70-420c-b5ef-4b46ae1f8d5e%2Fa0ae82f8-eb35-49af-a506-43ab4f75d5bb%2Fm7ppw83_processed.png&w=3840&q=75)
Transcribed Image Text:Verify that the equation is an identity.
cot a + 1
1+ tan a
cot a – 1
1.
- tan a
To verify the identity, start with the more complicated side and transform it to look like the other side. Choose the correct transformations and transform the expression at each step.
cot a + 1
%3D
cot a – 1
Rewrite the numerator and denominator as a single fraction.
%3D
Multiply by the reciprocal.
1+ tan a
1- tan a
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