Express as a Product $\sin 13 \theta + \sin 3 \theta$

question 11

Multiple Choice

Express as a product. $\sin 13 \theta + \sin 3 \theta$

• A) \(\sin ( 8 \theta ) \cos ( 5 \theta )\)
• B) \(2 \sin ( 16 \theta ) \cos ( 10 \theta )\)
• C) \(2 \cos ( 9 \theta ) \sin ( 4 \theta )\)
• D) \(4 \sin ( 8 \theta ) \cos ( 5 \theta )\)
• E) \(2 \sin ( 8 \theta ) \cos ( 5 \theta )\)

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Definitions:

Collective Unconscious

A term developed by Carl Jung, referring to the part of the unconscious mind which is derived from ancestral memory and experience and is common to all humankind, distinct from the personal unconscious.

Psychosexual Stages

A Freudian theory that proposes five stages of psychological development (oral, anal, phallic, latency, genital) through which a child's libido focuses on different erogenous zones.

Displacement

Displacement is a defense mechanism where an individual shifts feelings from an undesirable situation or person to someone or something that is less threatening.

Regression

In psychology, a defense mechanism leading an individual to revert to an earlier stage of development in response to stress or conflict; in statistics, a method to determine the relationship between variables.