Find the Exact Value of the Indicated Trigonometric Function Of \theta

question 321

Multiple Choice

Find the exact value of the indicated trigonometric function of $\theta$
- $\tan \theta = - \frac { 8 } { 9 } , \quad \theta$ in quadrant II $\quad$ Find $\cos \theta$

• A) \(- \frac { 3 \sqrt { 13 } } { 13 }\)
• B) \(- \frac { \sqrt { 13 } } { 3 }\)
• C) \(\frac { 3 \sqrt { 13 } } { 13 }\)
• D) \(\frac { \sqrt { 13 } } { 2 }\)

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