Feedback form
Hi! What do you think?

Drag it here or paste with Ctrl+V

    You can also email us on infocalculat.io

    Cos 82 Degrees

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

    What is cos 82°?

    Answer

    cos 82° ≈
    0.1392

    Angle in radians: 82° = 41π/90. The point of the angle is in quadrant I, where cosine is positive.

    ≈ — rounded to 4 decimal places. cos 82° can't be written with square roots: 82° is not a multiple of 3°.

    P(cos 82°, sin 82°) ≈ (0.1392, 0.9903)

    xyOP

    P(cos 82°, sin 82°) ≈ (0.1392, 0.9903)

    Highlighted: the projection on the x-axis — cosine, x ≈ 0.1392.

    All four functions of 82°
    FunctionExact valueDecimal
    sin 82°—≈ 0.9903
    cos 82°—≈ 0.1392
    tan 82°—≈ 7.1154
    cot 82°—≈ 0.1405

    See Also

    Share This Calculation
    Print
    https://calculat.io/en/number/trigonometry/cos--82Copy
    <a href="https://calculat.io/en/number/trigonometry/cos--82">Cos 82 Degrees: Cosine of 82° on the Unit Circle</a>Copy
    Facebook
    Twitter
    Telegram
    WhatsApp
    Viber
    Email
    Cos 82 Degrees: Cosine of 82° on the Unit Circle. cos 82° ≈ 0.1392. The cosine is the x-coordinate of the point at 82° on the unit circle.
    https://calculat.io/en/number/trigonometry/cos--82/generated.jpgCopy

    Cosine of nearby angles

    Anglecos
    79°≈ 0.1908
    80°≈ 0.1736
    81°≈ 0.1564
    82°≈ 0.1392
    83°≈ 0.1219
    84°≈ 0.1045
    85°≈ 0.0872
    Recalculate with different values ↑

    FAQ

    What is cos 82°?

    cos 82° ≈ 0.1392

    Why does cos 82° 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°. 82° is not, so no such exact form exists; the value is used as a decimal: cos 82° ≈ 0.1392.

    Why does a calculator show 0.9497 for cos 82?

    The calculator is in radian mode (RAD): it takes cos 82 as the cosine of 82 radians, cos 82 rad ≈ 0.9497. Switch it to degrees (DEG): cos 82° ≈ 0.1392. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also