The SIN function returns the sine of the angle passed as an argument.
Syntax
              SIN(
    <value>
)
Parameters
              - value: Angle in radians whose sine you want to calculate.
 
Returned value
              The SIN function returns a real number corresponding to the sine of the indicated angle.
Additional Information
              This function requires that the angle it receives as a parameter be expressed in radians. If the available angle is in sexagesimal degrees, it will have to be multiplied by PI()/ 180 or use the RADIANS function to convert it to radians.

By Geek3 (Own work) [GFDL or CC BY-SA 4.0-3.0-2.5-2.0-1.0], via Wikimedia Commons
Examples
          The following example shows the sine of various angles:

Category
              Mathematical and trigonometric