Solve the Equation (X in Radians and θ in Degrees) $4 \sin ^ { 2 } x - 1 = 0$

Solve the equation (x in radians and θ in degrees) for all exact solutions where appropriate. Round approximate answers in radians to four decimal places and approximate answers in degrees to the nearest tenth.
- $4 \sin ^ { 2 } x - 1 = 0$

A) $\left\{ \frac { \pi } { 6 } + n \pi , \frac { 5 \pi } { 6 } + n \pi \right\}$
B) $\left\{ \frac { \pi } { 3 } + \mathrm { n } \pi , \frac { 5 \pi } { 6 } + \mathrm { n } \pi \right\}$
C) $\left\{ \frac { \pi } { 3 } + n \pi \right\}$
D) $\left\{ \frac { \pi } { 6 } + n \pi , \frac { \pi } { 2 } + 2 n \pi \right\}$

Correct Answer:

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