Complete the Identity $$\cos ( 4 \theta ) = \text { ? }$$

question 50

Multiple Choice

Complete the identity.
- $$\cos ( 4 \theta ) = \text { ? }$$

• A) \(3 \sin \theta - 4 \sin ^ { 3 } \theta\)
• B) \(\cos ^ { 4 } \theta - 6 \sin ^ { 2 } \theta \cos ^ { 2 } \theta + \sin ^ { 4 } \theta\)
• C) \(4 \sin \theta \cos ^ { 3 } \theta - 4 \sin ^ { 3 } \theta \cos \theta\)
• D) \(\cos ^ { 3 } \theta - 3 \sin ^ { 2 } \theta \cos \theta\)

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Definitions:

Relevant

Pertains to the matter at hand, having significant and demonstrable bearing on the facts or issues.

Probability

A measure of the likelihood or chance that a particular event will occur, often expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Deposition

A sworn, out-of-court testimony of a witness that is used for gathering information and evidence in legal proceedings.

Oath

A solemn promise, often invoking a divine witness, regarding one's future action or behavior.