Sin 79 Degrees
Sin, Cos, Tan, Cot of an Angle
What is sin 79°?
Answer
sin 79° ≈
0.9816
Angle in radians: 79° = 79π/180. The point of the angle is in quadrant I, where sine is positive.
≈ — rounded to 4 decimal places. sin 79° can't be written with square roots: 79° is not a multiple of 3°.
P(cos 79°, sin 79°) ≈ (0.1908, 0.9816)
P(cos 79°, sin 79°) ≈ (0.1908, 0.9816)
Highlighted: the projection on the y-axis — sine, y ≈ 0.9816.
See Also
- Arcsin, Arccos, Arctan, Arccot - The angle from the value of its sine, cosine, tangent or cotangent: exact in degrees and π, with the check and the unit circle
- Square Root Calculator - Calculate the square root of any number
- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
- Geometry Formulas: Area, Volume, Perimeter - The formula for every standard shape, where it comes from, and worked examples
Sine of nearby angles
FAQ
What is sin 79°?
sin 79° ≈ 0.9816
Why does sin 79° 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°. 79° is not, so no such exact form exists; the value is used as a decimal: sin 79° ≈ 0.9816.
Why does a calculator show −0.4441 for sin 79?
The calculator is in radian mode (RAD): it takes sin 79 as the sine of 79 radians, sin 79 rad ≈ −0.4441. Switch it to degrees (DEG): sin 79° ≈ 0.9816. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.
See Also
- Sin 69 Degrees: Sine of 69° on the Unit Circle
- Sin 70 Degrees: Sine of 70° on the Unit Circle
- Sin 71 Degrees: Sine of 71° on the Unit Circle
- Sin 72 Degrees: Sine of 72° on the Unit Circle
- Sin 73 Degrees: Sine of 73° on the Unit Circle
- Sin 74 Degrees: Sine of 74° on the Unit Circle
- Sin 75 Degrees: Sine of 75° on the Unit Circle
- Sin 76 Degrees: Sine of 76° on the Unit Circle
- Sin 77 Degrees: Sine of 77° on the Unit Circle
- Sin 78 Degrees: Sine of 78° on the Unit Circle
- Sin 80 Degrees: Sine of 80° on the Unit Circle
- Sin 81 Degrees: Sine of 81° on the Unit Circle
- Sin 82 Degrees: Sine of 82° on the Unit Circle
- Sin 83 Degrees: Sine of 83° on the Unit Circle
- Sin 84 Degrees: Sine of 84° on the Unit Circle
- Sin 85 Degrees: Sine of 85° on the Unit Circle
- Sin 86 Degrees: Sine of 86° on the Unit Circle
- Sin 87 Degrees: Sine of 87° on the Unit Circle
- Sin 88 Degrees: Sine of 88° on the Unit Circle
- Sin 89 Degrees: Sine of 89° on the Unit Circle
- Синус 79 градусов (sin 79°) на единичной окружности
- Seno de 79 grados (sen 79°) en el círculo unitario
- Seno de 79 graus (sen 79°) no ciclo trigonométrico