Sin 70 Degrees
Sin, Cos, Tan, Cot of an Angle
What is sin 70°?
Answer
sin 70° ≈
0.9397
Angle in radians: 70° = 7π/18. The point of the angle is in quadrant I, where sine is positive.
≈ — rounded to 4 decimal places. sin 70° can't be written with square roots: 70° is not a multiple of 3°.
P(cos 70°, sin 70°) ≈ (0.3420, 0.9397)
P(cos 70°, sin 70°) ≈ (0.3420, 0.9397)
Highlighted: the projection on the y-axis — sine, y ≈ 0.9397.
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 70°?
sin 70° ≈ 0.9397
Why does sin 70° 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°. 70° is not, so no such exact form exists; the value is used as a decimal: sin 70° ≈ 0.9397.
Why does a calculator show 0.7739 for sin 70?
The calculator is in radian mode (RAD): it takes sin 70 as the sine of 70 radians, sin 70 rad ≈ 0.7739. Switch it to degrees (DEG): sin 70° ≈ 0.9397. 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 60 Degrees: Sine of 60° on the Unit Circle
- Sin 61 Degrees: Sine of 61° on the Unit Circle
- Sin 62 Degrees: Sine of 62° on the Unit Circle
- Sin 63 Degrees: Sine of 63° on the Unit Circle
- Sin 64 Degrees: Sine of 64° on the Unit Circle
- Sin 65 Degrees: Sine of 65° on the Unit Circle
- Sin 66 Degrees: Sine of 66° on the Unit Circle
- Sin 67 Degrees: Sine of 67° on the Unit Circle
- Sin 68 Degrees: Sine of 68° on the Unit Circle
- Sin 69 Degrees: Sine of 69° 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 79 Degrees: Sine of 79° on the Unit Circle
- Sin 80 Degrees: Sine of 80° on the Unit Circle
- Синус 70 градусов (sin 70°) на единичной окружности
- Seno de 70 grados (sen 70°) en el círculo unitario
- Seno de 70 graus (sen 70°) no ciclo trigonométrico