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    Cos 68 Degrees

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

    What is cos 68°?

    Answer

    cos 68° ≈
    0.3746

    Angle in radians: 68° = 17π/45. The point of the angle is in quadrant I, where cosine is positive.

    ≈ — rounded to 4 decimal places. cos 68° can't be written with square roots: 68° is not a multiple of 3°.

    P(cos 68°, sin 68°) ≈ (0.3746, 0.9272)

    xyOP

    P(cos 68°, sin 68°) ≈ (0.3746, 0.9272)

    Highlighted: the projection on the x-axis — cosine, x ≈ 0.3746.

    All four functions of 68°
    FunctionExact valueDecimal
    sin 68°—≈ 0.9272
    cos 68°—≈ 0.3746
    tan 68°—≈ 2.4751
    cot 68°—≈ 0.4040

    See Also

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    https://calculat.io/en/number/trigonometry/cos--68Copy
    <a href="https://calculat.io/en/number/trigonometry/cos--68">Cos 68 Degrees: Cosine of 68° on the Unit Circle</a>Copy
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    Cos 68 Degrees: Cosine of 68° on the Unit Circle. cos 68° ≈ 0.3746. The cosine is the x-coordinate of the point at 68° on the unit circle.
    https://calculat.io/en/number/trigonometry/cos--68/generated.jpgCopy

    Cosine of nearby angles

    Anglecos
    65°≈ 0.4226
    66°≈ 0.4067
    67°≈ 0.3907
    68°≈ 0.3746
    69°≈ 0.3584
    70°≈ 0.3420
    71°≈ 0.3256
    Recalculate with different values ↑

    FAQ

    What is cos 68°?

    cos 68° ≈ 0.3746

    Why does cos 68° 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°. 68° is not, so no such exact form exists; the value is used as a decimal: cos 68° ≈ 0.3746.

    Why does a calculator show 0.4401 for cos 68?

    The calculator is in radian mode (RAD): it takes cos 68 as the cosine of 68 radians, cos 68 rad ≈ 0.4401. Switch it to degrees (DEG): cos 68° ≈ 0.3746. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also