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

**Formula:**

=ASIN(number)

**Explanations:**

The number is required, the sine of the angle you want and must be from -1 to 1.

**Cautions:**

– The result is the angle in radians., use 180/PI() or use the DEGREES function to convert into degrees.

**1. Number from -1 to 0**

**2. Number from 0 to 1**