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Mathematics
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@ovidia
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cos(0) = 1 cos(90) = 0 cos(180) = -1 cos(270) = 0 cos(360) = 1 Learn about the unit circle. Check out a couple of videos that I have made on the Unit Circle. https://www.youtube.com/watch?v=kmj77vOWH3U Hope this helps!
Thanks! I did stuff on your video.
@ajspeller
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