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    Cot 28 Degrees

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

    What is cot 28°?

    Answer

    cot 28° ≈
    1.8807

    Angle in radians: 28° = 7π/45. The point of the angle is in quadrant I, where cotangent is positive.

    ≈ — rounded to 4 decimal places. cot 28° can't be written with square roots: 28° is not a multiple of 3°.

    cot 28° = cos 28° / sin 28° ≈ 1.8807

    xyOP

    P(cos 28°, sin 28°) ≈ (0.8829, 0.4695)

    C(cot 28°, 1) ≈ (1.8807, 1) — where line OP meets the line y = 1.

    All four functions of 28°
    FunctionExact valueDecimal
    sin 28°—≈ 0.4695
    cos 28°—≈ 0.8829
    tan 28°—≈ 0.5317
    cot 28°—≈ 1.8807

    See Also

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    https://calculat.io/en/number/trigonometry/cot--28Copy
    <a href="https://calculat.io/en/number/trigonometry/cot--28">Cot 28 Degrees: Cotangent of 28° on the Unit Circle</a>Copy
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    Cot 28 Degrees: Cotangent of 28° on the Unit Circle. cot 28° ≈ 1.8807. The cotangent is the ratio x/y of the point at 28° on the unit circle.
    https://calculat.io/en/number/trigonometry/cot--28/generated.jpgCopy

    Cotangent of nearby angles

    Anglecot
    25°≈ 2.1445
    26°≈ 2.0503
    27°≈ 1.9626
    28°≈ 1.8807
    29°≈ 1.8040
    30°√3
    31°≈ 1.6643
    Recalculate with different values ↑

    FAQ

    What is cot 28°?

    cot 28° ≈ 1.8807

    Why does cot 28° 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°. 28° is not, so no such exact form exists; the value is used as a decimal: cot 28° ≈ 1.8807.

    Why does a calculator show −3.5533 for cot 28?

    The calculator is in radian mode (RAD): it takes cot 28 as the cotangent of 28 radians, cot 28 rad ≈ −3.5533. Switch it to degrees (DEG): cot 28° ≈ 1.8807. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also