Choose the one alternative that best completes the statement or answers the question.
-$3 \cos ^ { 2 } x + 2 \cos x = 1$
A) $49.8 ^ { \circ } , 130.2 ^ { \circ } , 229.8 ^ { \circ } , 310.2 ^ { \circ }$
B) $51.8 ^ { \circ } , 128.2 ^ { \circ }$
C) $70.5 ^ { \circ } , 180.0 ^ { \circ } , 289.5 ^ { \circ }$
D) $103.2 ^ { \circ } , 145.2 ^ { \circ } , 283.2 ^ { \circ } , 325.2 ^ { \circ }$

Question

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The Answer of Choose the one alternative that best completes the statement or answers the question.
-$3 \cos ^ { 2 } x + 2 \cos x = 1$
A) $49.8 ^ { \circ } , 130.2 ^ { \circ } , 229.8 ^ { \circ } , 310.2 ^ { \circ }$
B) $51.8 ^ { \circ } , 128.2 ^ { \circ }$
C) $70.5 ^ { \circ } , 180.0 ^ { \circ } , 289.5 ^ { \circ }$
D) $103.2 ^ { \circ } , 145.2 ^ { \circ } , 283.2 ^ { \circ } , 325.2 ^ { \circ }$

Choose the One Alternative That Best Completes the Statement or Answers