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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 θ\theta
- tan⁡θ=−89,θ\tan \theta = - \frac { 8 } { 9 } , \quad \theta in quadrant II \quad Find cos⁡θ\cos \theta


A) −31313- \frac { 3 \sqrt { 13 } } { 13 }
B) −133- \frac { \sqrt { 13 } } { 3 }
C) 31313\frac { 3 \sqrt { 13 } } { 13 }
D) 132\frac { \sqrt { 13 } } { 2 }

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