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    Cot 140 Degrees

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

    What is cot 140°?

    Answer

    cot 140° ≈
    −1.1918

    Angle in radians: 140° = 7π/9. The point of the angle is in quadrant II, where cotangent is negative.

    ≈ — rounded to 4 decimal places. cot 140° can't be written with square roots: 140° is not a multiple of 3°.

    cot 140° = cot(180° − 40°) = −cot 40° ≈ −1.1918

    cot 140° = cos 140° / sin 140° ≈ −1.1918

    xyOP

    P(cos 140°, sin 140°) ≈ (−0.7660, 0.6428)

    C(cot 140°, 1) ≈ (−1.1918, 1) — where line OP meets the line y = 1.

    All four functions of 140°
    FunctionExact valueDecimal
    sin 140°—≈ 0.6428
    cos 140°—≈ −0.7660
    tan 140°—≈ −0.8391
    cot 140°—≈ −1.1918

    Reference angle: cot 40° ≈ 1.1918

    See Also

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    https://calculat.io/en/number/trigonometry/cot--140Copy
    <a href="https://calculat.io/en/number/trigonometry/cot--140">Cot 140 Degrees: Cotangent of 140° on the Unit Circle</a>Copy
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    Cot 140 Degrees: Cotangent of 140° on the Unit Circle. cot 140° ≈ −1.1918. The cotangent is the ratio x/y of the point at 140° on the unit circle; 140° reduces to 40°.
    https://calculat.io/en/number/trigonometry/cot--140/generated.jpgCopy

    Cotangent of nearby angles

    Anglecot
    130°≈ −0.8391
    134°≈ −0.9657
    135°−1
    140°≈ −1.1918
    142°≈ −1.2799
    144°−√(25 + 10√5)/5
    145°≈ −1.4281
    Recalculate with different values ↑

    FAQ

    What is cot 140°?

    cot 140° ≈ −1.1918

    Why does cot 140° 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°. 140° is not, so no such exact form exists; the value is used as a decimal: cot 140° ≈ −1.1918.

    Why does a calculator show −0.2018 for cot 140?

    The calculator is in radian mode (RAD): it takes cot 140 as the cotangent of 140 radians, cot 140 rad ≈ −0.2018. Switch it to degrees (DEG): cot 140° ≈ −1.1918. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also