The ASIN function returns the arcsine, or inverse sine, of a number. The arcsine is the angle whose sine is number. The returned angle is given in radians in the range -pi/2 to pi/2.

ASIN takes 1 required argument and no optional arguments:

Syntax: ASIN(number)

#1)
Using the ASIN function:
#2)
The arguments for the ASIN function are:
Argument Required? Description
number Required The sine of the angle you want and must be from -1 to 1.

Summary

The ASIN function returns the arcsine, or inverse sine, of a number. The arcsine is the angle whose sine is number. The returned angle is given in radians in the range -pi/2 to pi/2.
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