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    Cos 35 Degrees

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

    What is cos 35°?

    Answer

    cos 35° ≈
    0.8192

    Angle in radians: 35° = 7π/36. The point of the angle is in quadrant I, where cosine is positive.

    ≈ — rounded to 4 decimal places. cos 35° can't be written with square roots: 35° is not a multiple of 3°.

    P(cos 35°, sin 35°) ≈ (0.8192, 0.5736)

    xyOP

    P(cos 35°, sin 35°) ≈ (0.8192, 0.5736)

    Highlighted: the projection on the x-axis — cosine, x ≈ 0.8192.

    All four functions of 35°
    FunctionExact valueDecimal
    sin 35°—≈ 0.5736
    cos 35°—≈ 0.8192
    tan 35°—≈ 0.7002
    cot 35°—≈ 1.4281

    See Also

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    https://calculat.io/en/number/trigonometry/cos--35Copy
    <a href="https://calculat.io/en/number/trigonometry/cos--35">Cos 35 Degrees: Cosine of 35° on the Unit Circle</a>Copy
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    Cos 35 Degrees: Cosine of 35° on the Unit Circle. cos 35° ≈ 0.8192. The cosine is the x-coordinate of the point at 35° on the unit circle.
    https://calculat.io/en/number/trigonometry/cos--35/generated.jpgCopy

    Cosine of nearby angles

    Anglecos
    32°≈ 0.8480
    33°≈ 0.8387
    34°≈ 0.8290
    35°≈ 0.8192
    36°(√5 + 1)/4
    37°≈ 0.7986
    38°≈ 0.7880
    Recalculate with different values ↑

    FAQ

    What is cos 35°?

    cos 35° ≈ 0.8192

    Why does cos 35° 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°. 35° is not, so no such exact form exists; the value is used as a decimal: cos 35° ≈ 0.8192.

    Why does a calculator show −0.9037 for cos 35?

    The calculator is in radian mode (RAD): it takes cos 35 as the cosine of 35 radians, cos 35 rad ≈ −0.9037. Switch it to degrees (DEG): cos 35° ≈ 0.8192. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also