Find the exact circular function value.
-$\cos 2 \pi$
A) 1
B) $\frac { 1 } { 2 }$
C) $- 1$
D) 0

Name: Find the exact circular function value. -$\cos 2 \pi$ A) 1 B) $\frac { 1 } { 2 }$ C) $- 1$ D) 0
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The cosine of an angle of $2\pi$ radians is equal to 1, as $2\pi$ represents a full rotation around the unit circle, bringing the angle back to its starting position on the positive x-axis, where $\cos(0) = 1$.

Find the Exact Circular Function Value cos⁡2π\cos 2 \picos2π A) 1 B)

Find the Exact Circular Function Value $\cos 2 \pi$ A) 1
B)