Solve the Problem $\mathrm { V } = \cos 2 \pi \mathrm { t }$

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

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

Correct Answer:

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