Sine (sin) Calculator
MathCalculate the sine of an angle in degrees or radians.
sin(angle)
The sine of the given angle.
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Odeh Ahwal0people find this calculator helpful
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Saved
Embeds
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Frequently Asked Questions
What is sine?
In a right triangle, sine is the ratio of the length of the side opposite an angle to the length of the hypotenuse. On the unit circle, sine equals the y-coordinate of the point at that angle.
What range does sine output fall in?
Sine always produces a value between -1 and 1, regardless of the input angle, since it represents a coordinate on a circle of radius 1.
Why does sine repeat itself?
Sine is periodic with a period of 360 degrees (2*pi radians), meaning sin(angle) = sin(angle + 360deg) for any angle, since adding a full rotation returns to the same point on the unit circle.
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