Sin 2 Degrees

Sin, Cos, Tan, Cot of an Angle
Function
Angle (°)

What is sin 2°?

Answer

sin 2° ≈
0.0349

Angle in radians: 2° = π/90. The point of the angle is in quadrant I, where sine is positive.

≈ — rounded to 4 decimal places. sin 2° can't be written with square roots: 2° is not a multiple of 3°.

P(cos 2°, sin 2°) ≈ (0.9994, 0.0349)

xyOP

P(cos 2°, sin 2°) ≈ (0.9994, 0.0349)

Highlighted: the projection on the y-axis — sine, y ≈ 0.0349.

All four functions of 2°
FunctionExact valueDecimal
sin 2°—≈ 0.0349
cos 2°—≈ 0.9994
tan 2°—≈ 0.0349
cot 2°—≈ 28.6363

See Also

Recalculate with different values ↑

Sine of nearby angles

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

FAQ

What is sin 2°?

sin 2° ≈ 0.0349

Why does sin 2° have no exact value?

A trigonometric value of a whole number of degrees can be written with square roots only when the angle is a multiple of 3°. 2° is not, so no such exact form exists; the value is used as a decimal: sin 2° ≈ 0.0349.

Why does a calculator show 0.9093 for sin 2?

The calculator is in radian mode (RAD): it takes sin 2 as the sine of 2 radians, sin 2 rad ≈ 0.9093. Switch it to degrees (DEG): sin 2° ≈ 0.0349. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

See Also