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    Cos 22 Degrees

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

    What is cos 22°?

    Answer

    cos 22° ≈
    0.9272

    Angle in radians: 22° = 11π/90. The point of the angle is in quadrant I, where cosine is positive.

    ≈ — rounded to 4 decimal places. cos 22° can't be written with square roots: 22° is not a multiple of 3°.

    P(cos 22°, sin 22°) ≈ (0.9272, 0.3746)

    xyOP

    P(cos 22°, sin 22°) ≈ (0.9272, 0.3746)

    Highlighted: the projection on the x-axis — cosine, x ≈ 0.9272.

    All four functions of 22°
    FunctionExact valueDecimal
    sin 22°—≈ 0.3746
    cos 22°—≈ 0.9272
    tan 22°—≈ 0.4040
    cot 22°—≈ 2.4751

    See Also

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    https://calculat.io/en/number/trigonometry/cos--22Copy
    <a href="https://calculat.io/en/number/trigonometry/cos--22">Cos 22 Degrees: Cosine of 22° on the Unit Circle</a>Copy
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    Cos 22 Degrees: Cosine of 22° on the Unit Circle. cos 22° ≈ 0.9272. The cosine is the x-coordinate of the point at 22° on the unit circle.
    https://calculat.io/en/number/trigonometry/cos--22/generated.jpgCopy

    Cosine of nearby angles

    Anglecos
    19°≈ 0.9455
    20°≈ 0.9397
    21°≈ 0.9336
    22°≈ 0.9272
    23°≈ 0.9205
    24°≈ 0.9135
    25°≈ 0.9063
    Recalculate with different values ↑

    FAQ

    What is cos 22°?

    cos 22° ≈ 0.9272

    Why does cos 22° 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°. 22° is not, so no such exact form exists; the value is used as a decimal: cos 22° ≈ 0.9272.

    Why does a calculator show −1.0000 for cos 22?

    The calculator is in radian mode (RAD): it takes cos 22 as the cosine of 22 radians, cos 22 rad ≈ −1.0000. Switch it to degrees (DEG): cos 22° ≈ 0.9272. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also