Solve the Problem $V = \cos 2 \pi t$ , Where $t$

Solve the problem.
-In an electric circuit, the electromotive force is defined as $V = \cos 2 \pi t$ , where $t$ is time in seconds. Solve the equation for $\mathrm { t }$ .

A) $t = \frac { 1 } { 2 \pi } \cos V$
B) $t = 2 \pi \cos V$
C) $t = \frac { 1 } { 2 \pi } \arccos V$
D) $t = 2 \pi \arccos V$

Correct Answer:

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