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    Tan 4 Degrees

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

    What is tan 4°?

    Answer

    tan 4° ≈
    0.0699

    Angle in radians: 4° = π/45. The point of the angle is in quadrant I, where tangent is positive.

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

    tan 4° = sin 4° / cos 4° ≈ 0.0699

    xyOP

    P(cos 4°, sin 4°) ≈ (0.9976, 0.0698)

    T(1, tan 4°) ≈ (1, 0.0699) — where line OP meets the line x = 1.

    All four functions of 4°
    FunctionExact valueDecimal
    sin 4°—≈ 0.0698
    cos 4°—≈ 0.9976
    tan 4°—≈ 0.0699
    cot 4°—≈ 14.3007

    See Also

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    https://calculat.io/en/number/trigonometry/tan--4Copy
    <a href="https://calculat.io/en/number/trigonometry/tan--4">Tan 4 Degrees: Tangent of 4° on the Unit Circle - Calculatio</a>Copy
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    Tan 4 Degrees: Tangent of 4° on the Unit Circle. tan 4° ≈ 0.0699. The tangent is the ratio y/x of the point at 4° on the unit circle.
    https://calculat.io/en/number/trigonometry/tan--4/generated.jpgCopy

    Tangent of nearby angles

    Angletan
    1°≈ 0.0175
    2°≈ 0.0349
    3°≈ 0.0524
    4°≈ 0.0699
    5°≈ 0.0875
    6°≈ 0.1051
    7°≈ 0.1228
    Recalculate with different values ↑

    FAQ

    What is tan 4°?

    tan 4° ≈ 0.0699

    Why does tan 4° 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°. 4° is not, so no such exact form exists; the value is used as a decimal: tan 4° ≈ 0.0699.

    Why does a calculator show 1.1578 for tan 4?

    The calculator is in radian mode (RAD): it takes tan 4 as the tangent of 4 radians, tan 4 rad ≈ 1.1578. Switch it to degrees (DEG): tan 4° ≈ 0.0699. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also