Cos 450 Degrees
Sin, Cos, Tan, Cot of an Angle
What is cos 450°?
Answer
cos 450° =
0
Angle in radians: 450° = 5π/2. 450° = 360° + 90° — a full turn plus 90°: the point is on the y-axis, (0, 1).
cos 450° = cos(450° − 360°) = cos 90°
P(cos 450°, sin 450°) = (0, 1)
P(cos 450°, sin 450°) = (0, 1)
The point lies on the y-axis, so its projection on the x-axis is 0: cos 450° = 0.
+1 turn: the drawing shows 90°.
See Also
- Arcsin, Arccos, Arctan, Arccot - The angle from the value of its sine, cosine, tangent or cotangent: exact in degrees and π, with the check and the unit circle
- Square Root Calculator - Calculate the square root of any number
- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
- Geometry Formulas: Area, Volume, Perimeter - The formula for every standard shape, where it comes from, and worked examples
FAQ
What is cos 450°?
cos 450° = 0
Why is cos 450° equal to 0?
450° ends at the same point as 90°, (0, 1), and cosine is its the x-coordinate, so cos 450° = 0.
Why does a calculator show −0.7302 for cos 450?
The calculator is in radian mode (RAD): it takes cos 450 as the cosine of 450 radians, cos 450 rad ≈ −0.7302. Switch it to degrees (DEG): cos 450° = 0. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.
See Also
- Cos 315 Degrees: Cosine of 315° on the Unit Circle
- Cos 324 Degrees: Cosine of 324° on the Unit Circle
- Cos 330 Degrees: Cosine of 330° on the Unit Circle
- Cos 341 Degrees: Cosine of 341° on the Unit Circle
- Cos 342 Degrees: Cosine of 342° on the Unit Circle
- Cos 345 Degrees: Cosine of 345° on the Unit Circle
- Cos 355 Degrees: Cosine of 355° on the Unit Circle
- Cos 360 Degrees: Cosine of 360° on the Unit Circle
- Cos 390 Degrees: Cosine of 390° on the Unit Circle
- Cos 400 Degrees: Cosine of 400° on the Unit Circle
- Cos 540 Degrees: Cosine of 540° on the Unit Circle
- Cos 570 Degrees: Cosine of 570° on the Unit Circle
- Cos 690 Degrees: Cosine of 690° on the Unit Circle
- Cos 720 Degrees: Cosine of 720° on the Unit Circle
- Cot 0 Degrees: Cotangent of 0° on the Unit Circle
- Cot 1 Degree: Cotangent of 1° on the Unit Circle
- Cot 2 Degrees: Cotangent of 2° on the Unit Circle
- Cot 3 Degrees: Cotangent of 3° on the Unit Circle
- Cot 4 Degrees: Cotangent of 4° on the Unit Circle
- Cot 5 Degrees: Cotangent of 5° on the Unit Circle
- Косинус 450 градусов (cos 450°) на единичной окружности
- Coseno de 450 grados (cos 450°) en el círculo unitario
- Cosseno de 450 graus (cos 450°) no ciclo trigonométrico