Answer
(1,0)
Work Step by Step
2$\pi$ is 360 degrees and its coordinates are (1, 0). Since 2$\pi$ is a full rotation of the unit circle, if you add another 2$\pi$ you would get 4$\pi$. 4$\pi$ is in the same spot as 2$\pi$ except 4$\pi$ is an additional rotation of the unit circle. Therefore 4$\pi$'s coordinates are (1,0) as well.
