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

Multiple Choice

Use the given information to find the exact value of the trigonometric function.
- $\csc \theta = - \frac { 6 } { 5 } , \tan \theta > 0 \quad$ Find $\cos \frac { \theta } { 2 }$ .

A) $- \frac { \sqrt { 18 - 3 \sqrt { 11 } } } { 6 }$
B) $\frac { \sqrt { 18 + 3 \sqrt { 11 } } } { 6 }$
C) $\frac { \sqrt { 11 } } { 12 }$
D) $- \frac { \sqrt { 6 + \sqrt { 11 } } } { 12 }$