Solve the Problem $T = 591 - 76 \cos 2 \theta$

Solve the problem.
-Consider the formula $T = 591 - 76 \cos 2 \theta$ , where $\theta$ is measured in degrees. To the nearest hundredth of a degree, what is the smallest positive value of $\theta$ for which the value of $T$ will be 567?

A) $35.79 ^ { \circ }$
B) $74.58 ^ { \circ }$
C) $71.58 ^ { \circ }$
D) $32.79 ^ { \circ }$

Correct Answer:

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