Use well-known trigonometric identities to determine which of the following equations are identities. (a) sin θ sec θ = tan θ Identity or Not an Identity (b) tan2 θ − sec2 θ = 1 Identity or Not an Identity (c) 1/tan θ + 1/cot θ = sec θ csc θ Identity or Not an Identity (d) sin(θ + 15°) / cos(75°− θ) = 1 Identity or Not an Identity
Use well-known trigonometric identities to determine which of the following equations are identities. (a) sin θ sec θ = tan θ Identity or Not an Identity (b) tan2 θ − sec2 θ = 1 Identity or Not an Identity (c) 1/tan θ + 1/cot θ = sec θ csc θ Identity or Not an Identity (d) sin(θ + 15°) / cos(75°− θ) = 1 Identity or Not an Identity
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 69E
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Use well-known trigonometric identities to determine which of the following equations are identities.
(a) sin θ sec θ = tan θ Identity or Not an Identity
(b) tan2 θ − sec2 θ = 1 Identity or Not an Identity
(c) 1/tan θ + 1/cot θ = sec θ csc θ Identity or Not an Identity
(d) sin(θ + 15°) / cos(75°− θ) = 1 Identity or Not an Identity
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