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    Cot 31 Degrees

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

    What is cot 31°?

    Answer

    cot 31° ≈
    1.6643

    Angle in radians: 31° = 31π/180. The point of the angle is in quadrant I, where cotangent is positive.

    ≈ — rounded to 4 decimal places. cot 31° can't be written with square roots: 31° is not a multiple of 3°.

    cot 31° = cos 31° / sin 31° ≈ 1.6643

    xyOP

    P(cos 31°, sin 31°) ≈ (0.8572, 0.5150)

    C(cot 31°, 1) ≈ (1.6643, 1) — where line OP meets the line y = 1.

    All four functions of 31°
    FunctionExact valueDecimal
    sin 31°—≈ 0.5150
    cos 31°—≈ 0.8572
    tan 31°—≈ 0.6009
    cot 31°—≈ 1.6643

    See Also

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    https://calculat.io/en/number/trigonometry/cot--31Copy
    <a href="https://calculat.io/en/number/trigonometry/cot--31">Cot 31 Degrees: Cotangent of 31° on the Unit Circle</a>Copy
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    Cot 31 Degrees: Cotangent of 31° on the Unit Circle. cot 31° ≈ 1.6643. The cotangent is the ratio x/y of the point at 31° on the unit circle.
    https://calculat.io/en/number/trigonometry/cot--31/generated.jpgCopy

    Cotangent of nearby angles

    Anglecot
    28°≈ 1.8807
    29°≈ 1.8040
    30°√3
    31°≈ 1.6643
    32°≈ 1.6003
    33°≈ 1.5399
    34°≈ 1.4826
    Recalculate with different values ↑

    FAQ

    What is cot 31°?

    cot 31° ≈ 1.6643

    Why does cot 31° 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°. 31° is not, so no such exact form exists; the value is used as a decimal: cot 31° ≈ 1.6643.

    Why does a calculator show −2.2640 for cot 31?

    The calculator is in radian mode (RAD): it takes cot 31 as the cotangent of 31 radians, cot 31 rad ≈ −2.2640. Switch it to degrees (DEG): cot 31° ≈ 1.6643. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also