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    Cos 74 Degrees

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

    What is cos 74°?

    Answer

    cos 74° ≈
    0.2756

    Angle in radians: 74° = 37π/90. The point of the angle is in quadrant I, where cosine is positive.

    ≈ — rounded to 4 decimal places. cos 74° can't be written with square roots: 74° is not a multiple of 3°.

    P(cos 74°, sin 74°) ≈ (0.2756, 0.9613)

    xyOP

    P(cos 74°, sin 74°) ≈ (0.2756, 0.9613)

    Highlighted: the projection on the x-axis — cosine, x ≈ 0.2756.

    All four functions of 74°
    FunctionExact valueDecimal
    sin 74°—≈ 0.9613
    cos 74°—≈ 0.2756
    tan 74°—≈ 3.4874
    cot 74°—≈ 0.2867

    See Also

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    https://calculat.io/en/number/trigonometry/cos--74Copy
    <a href="https://calculat.io/en/number/trigonometry/cos--74">Cos 74 Degrees: Cosine of 74° on the Unit Circle</a>Copy
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    Cos 74 Degrees: Cosine of 74° on the Unit Circle. cos 74° ≈ 0.2756. The cosine is the x-coordinate of the point at 74° on the unit circle.
    https://calculat.io/en/number/trigonometry/cos--74/generated.jpgCopy

    Cosine of nearby angles

    Anglecos
    71°≈ 0.3256
    72°(√5 − 1)/4
    73°≈ 0.2924
    74°≈ 0.2756
    75°(√6 − √2)/4
    76°≈ 0.2419
    77°≈ 0.2250
    Recalculate with different values ↑

    FAQ

    What is cos 74°?

    cos 74° ≈ 0.2756

    Why does cos 74° 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°. 74° is not, so no such exact form exists; the value is used as a decimal: cos 74° ≈ 0.2756.

    Why does a calculator show 0.1717 for cos 74?

    The calculator is in radian mode (RAD): it takes cos 74 as the cosine of 74 radians, cos 74 rad ≈ 0.1717. Switch it to degrees (DEG): cos 74° ≈ 0.2756. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also