Use Identities to Solve Trigonometric Equations
Solve the Equation on the Interval

Multiple Choice

Use Identities to Solve Trigonometric Equations
Solve the equation on the interval [0, 2π) .
- $2 \cos ^ { 2 } x + \sin x - 2 = 0$

A) $0 , \pi , \frac { \pi } { 6 } , \frac { 5 \pi } { 6 }$
B) $\frac { \pi } { 2 } , \frac { 3 \pi } { 2 } , \frac { \pi } { 3 } , \frac { 2 \pi } { 3 }$
C) $\frac { \pi } { 6 } , \frac { 5 \pi } { 6 }$
D) $\frac { \pi } { 3 } , \frac { 2 \pi } { 3 }$