Arcsin Calculator (Inverse Sine Calculator)

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

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Arcsin Calculator

Arcsin calculator finds the 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 an inverse to find the angle of the 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.

arcsine

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

1/2

30°

π/6

√2/2

45°

π/4

√3/2

60°

π/3

1

90°

π/2

X
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