Use the Figure Below to Find the Exact Value of the Given

question 39

Multiple Choice

Use the figure below to find the exact value of the given trigonometric expression. $$\cos \frac { \theta } { 2 }$$

• A)​ \(\cos \frac { \theta } { 2 } = \frac { 7 \sqrt { 2 } } { 10 }\)
• B)​ \(\cos \frac { \theta } { 2 } = \frac { 7 \sqrt { 2 } } { 7 }\)
• C)​ \(\cos \frac { \theta } { 2 } = \frac { \sqrt { 2 } } { 10 }\)
• D)​ \(\cos \frac { \theta } { 2 } = 7\)
• E)​ \(\cos \frac { x } { 2 } = \frac { 7 \sqrt { 2 } } { 12 }\)

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Definitions:

Demographic Segment

A market division based on demographic factors, such as age, race, gender, income, or education level, to refine marketing and targeting strategies.