Verify the identity. sin 40 = 4 cos '0 sin 0 – 4 sin °0 cos 0
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°.
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Verify using proofs and rules
![**Verify the Identity**
\[
\sin 4\theta = 4\cos^3\theta \sin\theta - 4\sin^3\theta \cos\theta
\]
In this identity, you are asked to verify that the expression on the left-hand side is equivalent to the expression on the right-hand side. This involves using trigonometric identities to manipulate and simplify both sides to show their equivalence.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4167b07b-ab2c-42e3-ab89-9f12261de975%2Fe966e499-b0a6-4541-80d5-15192d6c6152%2Fbmlx5i_processed.png&w=3840&q=75)
Transcribed Image Text:**Verify the Identity**
\[
\sin 4\theta = 4\cos^3\theta \sin\theta - 4\sin^3\theta \cos\theta
\]
In this identity, you are asked to verify that the expression on the left-hand side is equivalent to the expression on the right-hand side. This involves using trigonometric identities to manipulate and simplify both sides to show their equivalence.
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