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    Sin 58 Degrees

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

    What is sin 58°?

    Answer

    sin 58° ≈
    0.8480

    Angle in radians: 58° = 29π/90. The point of the angle is in quadrant I, where sine is positive.

    ≈ — rounded to 4 decimal places. sin 58° can't be written with square roots: 58° is not a multiple of 3°.

    P(cos 58°, sin 58°) ≈ (0.5299, 0.8480)

    xyOP

    P(cos 58°, sin 58°) ≈ (0.5299, 0.8480)

    Highlighted: the projection on the y-axis — sine, y ≈ 0.8480.

    All four functions of 58°
    FunctionExact valueDecimal
    sin 58°—≈ 0.8480
    cos 58°—≈ 0.5299
    tan 58°—≈ 1.6003
    cot 58°—≈ 0.6249

    See Also

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    https://calculat.io/en/number/trigonometry/sin--58Copy
    <a href="https://calculat.io/en/number/trigonometry/sin--58">Sin 58 Degrees: Sine of 58° on the Unit Circle - Calculatio</a>Copy
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    Sin 58 Degrees: Sine of 58° on the Unit Circle. sin 58° ≈ 0.8480. The sine is the y-coordinate of the point at 58° on the unit circle.
    https://calculat.io/en/number/trigonometry/sin--58/generated.jpgCopy

    Sine of nearby angles

    Anglesin
    55°≈ 0.8192
    56°≈ 0.8290
    57°≈ 0.8387
    58°≈ 0.8480
    59°≈ 0.8572
    60°√3/2
    61°≈ 0.8746
    Recalculate with different values ↑

    FAQ

    What is sin 58°?

    sin 58° ≈ 0.8480

    Why does sin 58° 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°. 58° is not, so no such exact form exists; the value is used as a decimal: sin 58° ≈ 0.8480.

    Why does a calculator show 0.9929 for sin 58?

    The calculator is in radian mode (RAD): it takes sin 58 as the sine of 58 radians, sin 58 rad ≈ 0.9929. Switch it to degrees (DEG): sin 58° ≈ 0.8480. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also