Write the Expression as the Sine, Cosine, or Tangent of a Double

question 113

Multiple Choice

Write the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression.
- $2 \sin 75 ^ { \circ } \cos 75 ^ { \circ }$

• A) \(\frac { 1 } { 2 }\)
• B) \(- \frac { \sqrt { 3 } } { 2 }\)
• C) \(- \frac { 1 } { 2 }\)
• D) \(\frac { \sqrt { 3 } } { 2 }\)

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Definitions:

Observation

The action or process of closely monitoring or watching something or someone, often used as a method in scientific research or studies.

Experimentation

A method in scientific research used to test hypotheses and theories through controlled and structured testing.

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Empirical Findings

Information and knowledge acquired by means of observation or experimentation that are grounded in empirical evidence.