Use the Given Information to Find the Exact Value of the Trigonometric

question 153

Multiple Choice

Use the given information to find the exact value of the trigonometric function.
- $\cos \theta = - \frac { 3 } { 5 } , \sin \theta > 0 \quad$ Find $\cos \frac { \theta } { 2 }$ .

• A) \(\frac { \sqrt { 5 } } { 5 }\)
• B) \(- \frac { \sqrt { 5 } } { 5 }\)
• C) \(- \frac { \sqrt { 30 } } { 10 }\)
• D) \(\frac { \sqrt { 30 } } { 10 }\)

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