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    Cos 67 Degrees

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

    What is cos 67°?

    Answer

    cos 67° ≈
    0.3907

    Angle in radians: 67° = 67π/180. The point of the angle is in quadrant I, where cosine is positive.

    ≈ — rounded to 4 decimal places. cos 67° can't be written with square roots: 67° is not a multiple of 3°.

    P(cos 67°, sin 67°) ≈ (0.3907, 0.9205)

    xyOP

    P(cos 67°, sin 67°) ≈ (0.3907, 0.9205)

    Highlighted: the projection on the x-axis — cosine, x ≈ 0.3907.

    All four functions of 67°
    FunctionExact valueDecimal
    sin 67°—≈ 0.9205
    cos 67°—≈ 0.3907
    tan 67°—≈ 2.3559
    cot 67°—≈ 0.4245

    See Also

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    https://calculat.io/en/number/trigonometry/cos--67Copy
    <a href="https://calculat.io/en/number/trigonometry/cos--67">Cos 67 Degrees: Cosine of 67° on the Unit Circle</a>Copy
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    Cos 67 Degrees: Cosine of 67° on the Unit Circle. cos 67° ≈ 0.3907. The cosine is the x-coordinate of the point at 67° on the unit circle.
    https://calculat.io/en/number/trigonometry/cos--67/generated.jpgCopy

    Cosine of nearby angles

    Anglecos
    64°≈ 0.4384
    65°≈ 0.4226
    66°≈ 0.4067
    67°≈ 0.3907
    68°≈ 0.3746
    69°≈ 0.3584
    70°≈ 0.3420
    Recalculate with different values ↑

    FAQ

    What is cos 67°?

    cos 67° ≈ 0.3907

    Why does cos 67° 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°. 67° is not, so no such exact form exists; the value is used as a decimal: cos 67° ≈ 0.3907.

    Why does a calculator show −0.5178 for cos 67?

    The calculator is in radian mode (RAD): it takes cos 67 as the cosine of 67 radians, cos 67 rad ≈ −0.5178. Switch it to degrees (DEG): cos 67° ≈ 0.3907. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also