Arcsin Calculator
How to Calculate or Solve Arcsin (Inverse Sine)
The arcsin (also known as the inverse sine or sin-1) is the inverse function of the sine function. It returns the angle whose sine is a given number.
Formula:
arcsin(x) = θ where -1 ≤ x ≤ 1, and θ is the angle whose sine is x.In other words, if sin(θ) = x, then arcsin(x) = θ. This means that arcsin is the function that undoes the sine operation.
Steps:
- Identify the value for which you want to calculate the arcsin.
- Ensure that the value is between -1 and 1, as sine can only have values within this range.
- Use a calculator or a programming tool to compute the arcsin value in radians or degrees.
Example:
If you want to find arcsin(0.5), you are looking for the angle whose sine is 0.5.
arcsin(0.5) = 30° or π/6 radiansKey Points:
- The result of an arcsin calculation is an angle, measured in either radians or degrees.
- Arcsin only works for values between -1 and 1.
- In radians, the result will be between -π/2 and π/2.
- In degrees, the result will be between -90° and 90°.
Common Arcsin Values Table
Value (x) | arcsin(x) (Radians) | arcsin(x) (Degrees) |
---|---|---|
-1 | -π/2 | -90° |
-0.5 | -π/6 | -30° |
0 | 0 | 0° |
0.5 | π/6 | 30° |
1 | π/2 | 90° |