Find the Exact Value of the Expression $\cos 210 ^ { \circ }$

question 283

Multiple Choice

Find the exact value of the expression.
- $\cos 210 ^ { \circ }$

• A) \(- \frac { \sqrt { 2 } } { 2 }\)
• B) \(\frac { \sqrt { 2 } } { 2 }\)
• C) \(\frac { \sqrt { 3 } } { 2 }\)
• D) \(- \frac { \sqrt { 3 } } { 2 }\)

---

Definitions:

Acquired

Developed or obtained through one's own actions or experiences, not inherent or innate.

Specificity

The ability to distinctly identify or recognize differences, often used in the context of immune responses or biochemical interactions.

Palatine Tonsils

Lymphatic tissue located on either side of the throat that helps defend the body against infection by trapping pathogens.

Abdominal Cavities

Regions within the abdomen that house major organs, divided primarily into the peritoneal cavity, pelvic cavity, and retroperitoneal space.