Arcsin of 0.9
Arcsin, Arccos, Arctan, Arccot
What is arcsin(0.9)?
Answer
arcsin(0.9) ≈
64.1581° ≈ 1.1198 rad
Range: arcsin x is an angle from −90° to 90°, so the answer is unique.
≈ — the value is not a table one; rounded to 4 decimal places.
arcsin(0.9) is the angle α in [−90°, 90°] with sin α = 0.9.
sin 64.1581° ≈ 0.9000
α = arcsin(0.9) ≈ 64.1581°
P ≈ (0.4359, 0.9)
P lies on the line y = 0.9 in the right half of the circle, where cos α ≥ 0; highlighted: sin α = 0.9.
| Function | Degrees | Radians |
|---|---|---|
| arcsin(0.9) | ≈ 64.1581° | ≈ 1.1198 |
| arccos(0.9) | ≈ 25.8419° | ≈ 0.4510 |
| arctan(0.9) | ≈ 41.9872° | ≈ 0.7328 |
| arccot(0.9) | ≈ 48.0128° | ≈ 0.8380 |
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See Also
- Sin, Cos, Tan, Cot of an Angle - Exact value in square roots and the decimal, with reduction to an acute angle on the unit circle
- Square Root Calculator - Calculate the square root of any number
- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
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<a href="https://calculat.io/en/number/inverse-trigonometry/arcsin--0.9">Arcsin of 0.9 (Inverse Sine) in Degrees and Radians</a>Facebook
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![Arcsin of 0.9 (Inverse Sine) in Degrees and Radians. arcsin(0.9) ≈ 64.1581° ≈ 1.1198 rad: the angle in [−90°, 90°] whose sine is 0.9. With the check and the unit circle.](https://calculat.io/en/number/inverse-trigonometry/arcsin--0.9/generated.jpg)
Arcsine of nearby values
| x | arcsin x |
|---|---|
| 3/4 | ≈ 48.5904° |
| 4/5 | ≈ 53.1301° |
| √3/2 | 60° = π/3 |
| 0.9 | ≈ 64.1581° |
| 1 | 90° = π/2 |
| 3/2 | does not exist |
| 2 | does not exist |