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    Cot 179 Degrees

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

    What is cot 179°?

    Answer

    cot 179° ≈
    −57.2900

    Angle in radians: 179° = 179π/180. The point of the angle is in quadrant II, where cotangent is negative.

    ≈ — rounded to 4 decimal places. cot 179° can't be written with square roots: 179° is not a multiple of 3°.

    cot 179° = cot(180° − 1°) = −cot 1° ≈ −57.2900

    cot 179° = cos 179° / sin 179° ≈ −57.2900

    xyOP

    P(cos 179°, sin 179°) ≈ (−0.9998, 0.0175)

    C(cot 179°, 1) ≈ (−57.2900, 1) — where line OP meets the line y = 1; C is beyond the drawing, the arrow points to it.

    All four functions of 179°
    FunctionExact valueDecimal
    sin 179°—≈ 0.0175
    cos 179°—≈ −0.9998
    tan 179°—≈ −0.0175
    cot 179°—≈ −57.2900

    Reference angle: cot 1° ≈ 57.2900

    See Also

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    https://calculat.io/en/number/trigonometry/cot--179Copy
    <a href="https://calculat.io/en/number/trigonometry/cot--179">Cot 179 Degrees: Cotangent of 179° on the Unit Circle</a>Copy
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    Cot 179 Degrees: Cotangent of 179° on the Unit Circle. cot 179° ≈ −57.2900. The cotangent is the ratio x/y of the point at 179° on the unit circle; 179° reduces to 1°.
    https://calculat.io/en/number/trigonometry/cot--179/generated.jpgCopy

    Cotangent of nearby angles

    Anglecot
    165°−2 − √3
    167°≈ −4.3315
    175°≈ −11.4301
    179°≈ −57.2900
    180°undefined
    195°2 + √3
    198°√(5 + 2√5)
    Recalculate with different values ↑

    FAQ

    What is cot 179°?

    cot 179° ≈ −57.2900

    Why does cot 179° 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°. 179° is not, so no such exact form exists; the value is used as a decimal: cot 179° ≈ −57.2900.

    Why does a calculator show −14.1044 for cot 179?

    The calculator is in radian mode (RAD): it takes cot 179 as the cotangent of 179 radians, cot 179 rad ≈ −14.1044. Switch it to degrees (DEG): cot 179° ≈ −57.2900. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also