Cos 0 Degrees: Cosine of 0° on the Unit Circle

What is cos 0°?

Answer

cos 0° =

1

Angle in radians: 0° = 0. The point of the angle is on the x-axis: (1, 0).

P(cos 0°, sin 0°) = (1, 0)

Highlighted: the projection on the x-axis — cosine, x = 1.

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