Use an Identity to Write the Expression as a Single $\sin 22.5 ^ { \circ }$

question 4

Multiple Choice

Use an identity to write the expression as a single trigonometric function or as a single number.
- $\sin 22.5 ^ { \circ }$

• A) \(- \frac { 1 } { 2 } \sqrt { 2 - \sqrt { 2 } }\)
• B) \(\frac { 1 } { 2 } \sqrt { 2 - \sqrt { 2 } }\)
• C) \(- \frac { 1 } { 2 } \sqrt { 2 + \sqrt { 2 } }\)
• D) \(\frac { 1 } { 2 } \sqrt { 2 + \sqrt { 2 } }\)

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Definitions:

Environmental

pertains to factors and conditions that surround an organism or system, influencing its development and behavior.

Genetic

Related to genes or heredity, the study of how traits are transmitted from parents to offspring.

Identical Twins

Twins who are genetically identical, resulting from the fertilization of a single egg that split into two.

Reared Apart

Refers to individuals, typically twins, who were raised in separate environments, used in studies to explore the influence of genetics versus environment.