Use a Graphing Utility to Approximate the Solutions (To Three $\left( - \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)$

Multiple Choice

Use a graphing utility to approximate the solutions (to three decimal places) of the given equation in the interval $\left( - \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)$ .
$6 \sin 2 x - 8 \cos x + 9 \sin x = 6$

A) x = 0.398
B) x = 1.336
C) x = 0.094
D) x = 0.73
E) x = 0.139