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:

Depersonalization-derealization Disorder

A dissociative disorder where a person experiences a sense of detachment from their body (depersonalization) or feelings of unreality or detachment from their surroundings (derealization).

Physical Problems

Health issues or conditions that affect the body, ranging from minor ailments to serious diseases.

Paralysis

The loss of the ability to move (and sometimes to feel anything) in part or most of the body, typically as a result of illness, poison, or injury.

Persistent Belief

An unyielding conviction held despite evidence to the contrary.