 # Arcsin Calculator (Inverse Sine)

Enter value between -1 and 1. Hit the Calculate button to get the arcsine using inverse sine calculator.

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Arcsin calculator finds angle of a triangle in degrees and radians for the given value. However, the value should be between -1 and 1 to get the arcsin in degrees. It converts the sine into inverse to find the angle of triangle.

## What is arcsine?

The arcsine of x is defined as the inverse sine function of x when -1≤x≤1. It is the inverse trigonometric function of sine.

When the sine of y is equal to x:

sin y = x

Then the arcsine of x is equal to the inverse sine function of x, which is equal to y:

arcsin x = sin-1 x = y

## How to find arcsin?

To calculate the arcsine for a triangle, follow the below example.

Example:

x = 0.5

Arcsin(x) = ?

Solution:

Step 1: Place the value of x in arcsine function.

Arcsin(0.5)

Step 2: Take the sin-1 of 0.5 in calculator (scientific).

Arcsin(0.5) = sin-1(0.5) = 30°

Note: Arcsin of 0 is 0 degree.

## Arcsin table

 x arcsin(x) in degree arcsin(x) in radian -1 -90° -π/2 -√3/2 -60° -π/3 -√2/2 -45° -π/4 -1/2 -30° -π/6 0 0° 0 1/2 30° π/6 √2/2 45° π/4 √3/2 60° π/3 1 90° π/2

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