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    Sin 49 Degrees

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

    What is sin 49°?

    Answer

    sin 49° ≈
    0.7547

    Angle in radians: 49° = 49π/180. The point of the angle is in quadrant I, where sine is positive.

    ≈ — rounded to 4 decimal places. sin 49° can't be written with square roots: 49° is not a multiple of 3°.

    P(cos 49°, sin 49°) ≈ (0.6561, 0.7547)

    xyOP

    P(cos 49°, sin 49°) ≈ (0.6561, 0.7547)

    Highlighted: the projection on the y-axis — sine, y ≈ 0.7547.

    All four functions of 49°
    FunctionExact valueDecimal
    sin 49°—≈ 0.7547
    cos 49°—≈ 0.6561
    tan 49°—≈ 1.1504
    cot 49°—≈ 0.8693

    See Also

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    https://calculat.io/en/number/trigonometry/sin--49Copy
    <a href="https://calculat.io/en/number/trigonometry/sin--49">Sin 49 Degrees: Sine of 49° on the Unit Circle - Calculatio</a>Copy
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    Sin 49 Degrees: Sine of 49° on the Unit Circle. sin 49° ≈ 0.7547. The sine is the y-coordinate of the point at 49° on the unit circle.
    https://calculat.io/en/number/trigonometry/sin--49/generated.jpgCopy

    Sine of nearby angles

    Anglesin
    46°≈ 0.7193
    47°≈ 0.7314
    48°≈ 0.7431
    49°≈ 0.7547
    50°≈ 0.7660
    51°≈ 0.7771
    52°≈ 0.7880
    Recalculate with different values ↑

    FAQ

    What is sin 49°?

    sin 49° ≈ 0.7547

    Why does sin 49° 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°. 49° is not, so no such exact form exists; the value is used as a decimal: sin 49° ≈ 0.7547.

    Why does a calculator show −0.9538 for sin 49?

    The calculator is in radian mode (RAD): it takes sin 49 as the sine of 49 radians, sin 49 rad ≈ −0.9538. Switch it to degrees (DEG): sin 49° ≈ 0.7547. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also