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    Cot 84 Degrees

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

    What is cot 84°?

    Answer

    cot 84° ≈
    0.1051

    Angle in radians: 84° = 7π/15. The point of the angle is in quadrant I, where cotangent is positive.

    ≈ — rounded to 4 decimal places. An exact form of cot 84° in square roots exists, but it is unwieldy — nested radicals.

    cot 84° = cos 84° / sin 84° ≈ 0.1051

    xyOP

    P(cos 84°, sin 84°) ≈ (0.1045, 0.9945)

    C(cot 84°, 1) ≈ (0.1051, 1) — where line OP meets the line y = 1.

    All four functions of 84°
    FunctionExact valueDecimal
    sin 84°—≈ 0.9945
    cos 84°—≈ 0.1045
    tan 84°—≈ 9.5144
    cot 84°—≈ 0.1051

    See Also

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    https://calculat.io/en/number/trigonometry/cot--84Copy
    <a href="https://calculat.io/en/number/trigonometry/cot--84">Cot 84 Degrees: Cotangent of 84° on the Unit Circle</a>Copy
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    Cot 84 Degrees: Cotangent of 84° on the Unit Circle. cot 84° ≈ 0.1051. The cotangent is the ratio x/y of the point at 84° on the unit circle.
    https://calculat.io/en/number/trigonometry/cot--84/generated.jpgCopy

    Cotangent of nearby angles

    Anglecot
    81°≈ 0.1584
    82°≈ 0.1405
    83°≈ 0.1228
    84°≈ 0.1051
    85°≈ 0.0875
    86°≈ 0.0699
    87°≈ 0.0524
    Recalculate with different values ↑

    FAQ

    What is cot 84°?

    cot 84° ≈ 0.1051

    Is there an exact value of cot 84°?

    Yes: 84° is a multiple of 3°, and the values of such angles can be written with square roots — but the expression is unwieldy, with nested radicals built from the values of 18° and 15° (3° = 18° − 15°). In practice the decimal is used: cot 84° ≈ 0.1051.

    Why does a calculator show −0.9275 for cot 84?

    The calculator is in radian mode (RAD): it takes cot 84 as the cotangent of 84 radians, cot 84 rad ≈ −0.9275. Switch it to degrees (DEG): cot 84° ≈ 0.1051. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also