Use the Half-Angle Formulas to Find the Exact Value of the Trigonometric

question 229

Multiple Choice

Use the Half-angle Formulas to find the exact value of the trigonometric function.
- $\sin 75 ^ { \circ }$

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

---

Definitions:

Age-Adjusted

A statistical process used to compare two or more populations at one point in time or one population over time after factoring out the influence of age.

Direct Adjustment

A statistical method used to eliminate the effects of confounding variables by standardizing to a common distribution.

Indirect Adjustment

A statistical method used to control or modify the effects of confounding variables on a primary relationship of interest by applying correction factors derived from external data.

Infant

A child in the earliest stage of life, typically defined as being from birth up to one year of age.