Evaluate the Expression Using the Concept of a Reference Angle $\cos \left( - 675 ^ { \circ } \right)$

question 4

Multiple Choice

Evaluate the expression using the concept of a reference angle. $\cos \left( - 675 ^ { \circ } \right)$

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

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Definitions:

Antidiuretic Hormone

A hormone that helps regulate the balance of water in the body by reducing urine production.

Pituitary Gland

A small, pea-sized gland located at the base of the brain, often termed the "master gland" for its role in regulating other glands and bodily functions.

Pituitary Gland

A small, pea-sized gland located at the base of the brain, crucial for regulating vital body functions and the endocrine system.

Hypothalamus

A brain region controlling various bodily functions, including temperature, hunger, thirst, fatigue, sleep, and circadian cycles.