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    Cot 125 Degrees

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

    What is cot 125°?

    Answer

    cot 125° ≈
    −0.7002

    Angle in radians: 125° = 25π/36. The point of the angle is in quadrant II, where cotangent is negative.

    ≈ — rounded to 4 decimal places. cot 125° can't be written with square roots: 125° is not a multiple of 3°.

    cot 125° = cot(180° − 55°) = −cot 55° ≈ −0.7002

    cot 125° = cos 125° / sin 125° ≈ −0.7002

    xyOP

    P(cos 125°, sin 125°) ≈ (−0.5736, 0.8192)

    C(cot 125°, 1) ≈ (−0.7002, 1) — where line OP meets the line y = 1.

    All four functions of 125°
    FunctionExact valueDecimal
    sin 125°—≈ 0.8192
    cos 125°—≈ −0.5736
    tan 125°—≈ −1.4281
    cot 125°—≈ −0.7002

    Reference angle: cot 55° ≈ 0.7002

    See Also

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    https://calculat.io/en/number/trigonometry/cot--125Copy
    <a href="https://calculat.io/en/number/trigonometry/cot--125">Cot 125 Degrees: Cotangent of 125° on the Unit Circle</a>Copy
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    Cot 125 Degrees: Cotangent of 125° on the Unit Circle. cot 125° ≈ −0.7002. The cotangent is the ratio x/y of the point at 125° on the unit circle; 125° reduces to 55°.
    https://calculat.io/en/number/trigonometry/cot--125/generated.jpgCopy

    Cotangent of nearby angles

    Anglecot
    108°−√(25 − 10√5)/5
    110°≈ −0.3640
    120°−√3/3
    125°≈ −0.7002
    126°−√(5 − 2√5)
    127°≈ −0.7536
    130°≈ −0.8391
    Recalculate with different values ↑

    FAQ

    What is cot 125°?

    cot 125° ≈ −0.7002

    Why does cot 125° 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°. 125° is not, so no such exact form exists; the value is used as a decimal: cot 125° ≈ −0.7002.

    Why does a calculator show −1.2787 for cot 125?

    The calculator is in radian mode (RAD): it takes cot 125 as the cotangent of 125 radians, cot 125 rad ≈ −1.2787. Switch it to degrees (DEG): cot 125° ≈ −0.7002. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also