Find All Values of X in the Interval [0°, 360°)

Multiple Choice

Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a
degree.
-3 + 2 cos x = 1

A) {103.2°, 145.2°, 283.2°, 325.2°}
B) {51.8°, 128.2°}
C) {49.8°, 130.2°, 229.8°, 310.2°}
D) {70.5°, 180°, 289.5°}