Cos(360°) = 1
Cosine — the x-coordinate of the corresponding unit-circle point, or adjacent/hypotenuse in a right triangle.
How to derive cos(360°)
360° equals one full revolution back to 0°. The unit-circle point is (1, 0), so cos(360°) = 1, identical to cos(0°).
Unit-circle context
The angle 360° corresponds to 2π radians and sits on an axis on the unit circle.
Other trig values at 360°
Related cos values
Frequently asked
- What is the exact value of cos(360°)?
- The exact value is 1. Its decimal approximation is 1.
- How do you derive cos(360°)?
- 360° equals one full revolution back to 0°. The unit-circle point is (1, 0), so cos(360°) = 1, identical to cos(0°).
- What is 360° in radians?
- 360° equals 2π radians (multiply degrees by π/180).
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