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    Sin 1 Degree

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

    What is sin 1°?

    Answer

    sin 1° ≈
    0.0175

    Angle in radians: 1° = π/180. The point of the angle is in quadrant I, where sine is positive.

    ≈ — rounded to 4 decimal places. sin 1° can't be written with square roots: 1° is not a multiple of 3°.

    P(cos 1°, sin 1°) ≈ (0.9998, 0.0175)

    xyOP

    P(cos 1°, sin 1°) ≈ (0.9998, 0.0175)

    Highlighted: the projection on the y-axis — sine, y ≈ 0.0175.

    All four functions of 1°
    FunctionExact valueDecimal
    sin 1°—≈ 0.0175
    cos 1°—≈ 0.9998
    tan 1°—≈ 0.0175
    cot 1°—≈ 57.2900

    See Also

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    https://calculat.io/en/number/trigonometry/sin--1Copy
    <a href="https://calculat.io/en/number/trigonometry/sin--1">Sin 1 Degree: Sine of 1° on the Unit Circle - Calculatio</a>Copy
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    Sin 1 Degree: Sine of 1° on the Unit Circle. sin 1° ≈ 0.0175. The sine is the y-coordinate of the point at 1° on the unit circle.
    https://calculat.io/en/number/trigonometry/sin--1/generated.jpgCopy

    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
    Recalculate with different values ↑

    FAQ

    What is sin 1°?

    sin 1° ≈ 0.0175

    Why does sin 1° 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°. 1° is not, so no such exact form exists; the value is used as a decimal: sin 1° ≈ 0.0175.

    Why does a calculator show 0.8415 for sin 1?

    The calculator is in radian mode (RAD): it takes sin 1 as the sine of 1 radian, sin 1 rad ≈ 0.8415. Switch it to degrees (DEG): sin 1° ≈ 0.0175. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also