Arccos of 0.3
Arcsin, Arccos, Arctan, Arccot
What is arccos(0.3)?
Answer
arccos(0.3) ≈
72.5424° ≈ 1.2661 rad
Range: arccos x is an angle from 0° to 180°, so the answer is unique.
≈ — the value is not a table one; rounded to 4 decimal places.
arccos(0.3) is the angle α in [0°, 180°] with cos α = 0.3.
cos 72.5424° ≈ 0.3000
α = arccos(0.3) ≈ 72.5424°
P ≈ (0.3, 0.9539)
P lies on the line x = 0.3 in the upper half of the circle, where sin α ≥ 0; highlighted: cos α = 0.3.
| Function | Degrees | Radians |
|---|---|---|
| arcsin(0.3) | ≈ 17.4576° | ≈ 0.3047 |
| arccos(0.3) | ≈ 72.5424° | ≈ 1.2661 |
| arctan(0.3) | ≈ 16.6992° | ≈ 0.2915 |
| arccot(0.3) | ≈ 73.3008° | ≈ 1.2793 |
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
Arccosine of nearby values
| x | arccos x |
|---|---|
| 0.14 | ≈ 81.9522° |
| 1/5 | ≈ 78.4630° |
| 1/4 | ≈ 75.5225° |
| 0.3 | ≈ 72.5424° |
| 1/3 | ≈ 70.5288° |
| 2/5 | ≈ 66.4218° |
| 1/2 | 60° = π/3 |
FAQ
What is arccos(0.3)?
arccos(0.3) ≈ 72.5424° ≈ 1.2661 rad
How to convert arccos(0.3) to radians?
Multiply the angle in degrees by π/180: 72.5424° × π/180 ≈ 1.2661 rad.
Why does a calculator show 1.2661 for arccos(0.3)?
The calculator is in radian mode (RAD) and gives the angle in radians: arccos(0.3) ≈ 1.2661 rad. In degrees (DEG) it is ≈ 72.5424°.
See Also
- Arccos of −0.3 (Inverse Cosine) in Degrees and Radians
- Arccos of −1 (Inverse Cosine) in Degrees and Radians
- Arccos of −1/2 (Inverse Cosine) in Degrees and Radians
- Arccos of −4/5 (Inverse Cosine) in Degrees and Radians
- Arccos of −√2/2 (Inverse Cosine) in Degrees and Radians
- Arccos of −√3/2 (Inverse Cosine) in Degrees and Radians
- Arccos of 0 (Inverse Cosine) in Degrees and Radians
- Arccos of 0.1 (Inverse Cosine) in Degrees and Radians
- Arccos of 0.7 (Inverse Cosine) in Degrees and Radians
- Arccos of 0.9 (Inverse Cosine) in Degrees and Radians
- Arccos of 0.14 (Inverse Cosine) in Degrees and Radians
- Arccos of 0.55 (Inverse Cosine) in Degrees and Radians
- Arccos of 0.65 (Inverse Cosine) in Degrees and Radians
- Arccos of 1 (Inverse Cosine) in Degrees and Radians
- Arccos of 1/2 (Inverse Cosine) in Degrees and Radians
- Arccos of 1/3 (Inverse Cosine) in Degrees and Radians
- Arccos of 1/4 (Inverse Cosine) in Degrees and Radians
- Arccos of 1/5 (Inverse Cosine) in Degrees and Radians
- Арккосинус 0.3 (arccos 0.3) в градусах и радианах
- Arcocoseno de 0.3 (arccos 0.3) en grados y radianes
- Arco cosseno de 0.3 (arccos 0.3) em graus e radianos