Sin 355 Degrees
Sin, Cos, Tan, Cot of an Angle
What is sin 355°?
Answer
sin 355° ≈
−0.0872
Angle in radians: 355° = 71π/36. The point of the angle is in quadrant IV, where sine is negative.
≈ — rounded to 4 decimal places. sin 355° can't be written with square roots: 355° is not a multiple of 3°.
sin 355° = sin(360° − 5°) = −sin 5° ≈ −0.0872
P(cos 355°, sin 355°) ≈ (0.9962, −0.0872)
P(cos 355°, sin 355°) ≈ (0.9962, −0.0872)
Highlighted: the projection on the y-axis — sine, y ≈ −0.0872.
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 355°?
sin 355° ≈ −0.0872
Why does sin 355° 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°. 355° is not, so no such exact form exists; the value is used as a decimal: sin 355° ≈ −0.0872.
Why does a calculator show −0.0000301 for sin 355?
The calculator is in radian mode (RAD): it takes sin 355 as the sine of 355 radians, sin 355 rad ≈ −0.0000301. Switch it to degrees (DEG): sin 355° ≈ −0.0872. 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 285 Degrees: Sine of 285° on the Unit Circle
- Sin 288 Degrees: Sine of 288° on the Unit Circle
- Sin 300 Degrees: Sine of 300° on the Unit Circle
- Sin 306 Degrees: Sine of 306° on the Unit Circle
- Sin 315 Degrees: Sine of 315° on the Unit Circle
- Sin 324 Degrees: Sine of 324° on the Unit Circle
- Sin 330 Degrees: Sine of 330° on the Unit Circle
- Sin 341 Degrees: Sine of 341° on the Unit Circle
- Sin 342 Degrees: Sine of 342° on the Unit Circle
- Sin 345 Degrees: Sine of 345° on the Unit Circle
- Sin 360 Degrees: Sine of 360° on the Unit Circle
- Sin 390 Degrees: Sine of 390° on the Unit Circle
- Sin 400 Degrees: Sine of 400° on the Unit Circle
- Sin 450 Degrees: Sine of 450° on the Unit Circle
- Sin 540 Degrees: Sine of 540° on the Unit Circle
- Sin 570 Degrees: Sine of 570° on the Unit Circle
- Sin 690 Degrees: Sine of 690° on the Unit Circle
- Sin 720 Degrees: Sine of 720° on the Unit Circle
- Tan 0 Degrees: Tangent of 0° on the Unit Circle
- Tan 1 Degree: Tangent of 1° on the Unit Circle
- Синус 355 градусов (sin 355°) на единичной окружности
- Seno de 355 grados (sen 355°) en el círculo unitario
- Seno de 355 graus (sen 355°) no ciclo trigonométrico