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    Sin 74 Degrees

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

    What is sin 74°?

    Answer

    sin 74° ≈
    0.9613

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

    ≈ — rounded to 4 decimal places. sin 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 y-axis — sine, y ≈ 0.9613.

    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/sin--74Copy
    <a href="https://calculat.io/en/number/trigonometry/sin--74">Sin 74 Degrees: Sine of 74° on the Unit Circle - Calculatio</a>Copy
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    Sin 74 Degrees: Sine of 74° on the Unit Circle. sin 74° ≈ 0.9613. The sine is the y-coordinate of the point at 74° on the unit circle.
    https://calculat.io/en/number/trigonometry/sin--74/generated.jpgCopy

    Sine of nearby angles

    Anglesin
    71°≈ 0.9455
    72°√(10 + 2√5)/4
    73°≈ 0.9563
    74°≈ 0.9613
    75°(√6 + √2)/4
    76°≈ 0.9703
    77°≈ 0.9744
    Recalculate with different values ↑

    FAQ

    What is sin 74°?

    sin 74° ≈ 0.9613

    Why does sin 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: sin 74° ≈ 0.9613.

    Why does a calculator show −0.9851 for sin 74?

    The calculator is in radian mode (RAD): it takes sin 74 as the sine of 74 radians, sin 74 rad ≈ −0.9851. Switch it to degrees (DEG): sin 74° ≈ 0.9613. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also