Sin 0 Degrees

Sin, Cos, Tan, Cot of an Angle

What is sin 0°?

Answer

sin 0° =

0

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

P(cos 0°, sin 0°) = (1, 0)

P(cos 0°, sin 0°) = (1, 0)

The point lies on the x-axis, so its projection on the y-axis is 0: sin 0° = 0.

All four functions of 0°
Function	Exact value	Decimal
sin 0°	0	0
cos 0°	1	1
tan 0°	0	0
cot 0°	undefined	—

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

Recalculate with different values ↑

Sine of nearby angles

Angle	sin
0°	0
1°	≈ 0.0175
2°	≈ 0.0349
3°	≈ 0.0523
4°	≈ 0.0698
5°	≈ 0.0872
6°	≈ 0.1045

FAQ

What is sin 0°?

sin 0° = 0

Why is sin 0° equal to 0?

The point of 0° on the unit circle is (1, 0), and sine is its the y-coordinate, so sin 0° = 0.

What is the sign of sine in each quadrant?

Sine is the y-coordinate of the point of the angle: positive in quadrants I and II, negative in III and IV.

See Also