Use Identities to Find the Exact Value $\cos \left( \frac { 19 \pi } { 12 } \right)$

question 86

Multiple Choice

Use Identities to find the exact value.
- $\cos \left( \frac { 19 \pi } { 12 } \right)$

• A) \(\sqrt { 2 } - \sqrt { 6 }\)
• B) \(\frac { \sqrt { 2 } - \sqrt { 6 } } { 4 }\)
• C) \(- \sqrt { 6 } - \sqrt { 2 }\)
• D) \(\frac { \sqrt { 6 } - \sqrt { 2 } } { 4 }\)

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Definitions:

Physical Punishment

A disciplinary method involving the use of physical force with the intention of causing a child to experience pain, but not injury, in order to correct or control behavior.

Social Concept

An idea or theory related to societal behaviors, structures, or functions.

Genetic Difference

Variations in the DNA sequences among individuals that contribute to the biological diversity of populations.

Races

Sociocultural categories, historically used to classify humans into groups based on physical traits, ancestry, and genetics, though widely considered a social construct.