Arctan of 5/2
Arcsin, Arccos, Arctan, Arccot
What is arctan(5/2)?
Answer
arctan(5/2) ≈
68.1986° ≈ 1.1903 rad
Range: arctan x is an angle strictly between −90° and 90°, so the answer is unique.
≈ — the value is not a table one; rounded to 4 decimal places.
5/2 = 2.5.
arctan(5/2) is the angle α in (−90°, 90°) with tan α = 5/2.
tan 68.1986° ≈ 2.5000
α = arctan(5/2) ≈ 68.1986°
P ≈ (0.3714, 0.9285)
T(1, 5/2) is where line OP meets the line x = 1, beyond the drawing (the arrow points to it); highlighted: tan α = 5/2.
| Function | Degrees | Radians |
|---|---|---|
| arcsin(5/2) | does not exist | — |
| arccos(5/2) | does not exist | — |
| arctan(5/2) | ≈ 68.1986° | ≈ 1.1903 |
| arccot(5/2) | ≈ 21.8014° | ≈ 0.3805 |
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
Arctangent of nearby values
| x | arctan x |
|---|---|
| 5/3 | ≈ 59.0362° |
| √3 | 60° = π/3 |
| 2 | ≈ 63.4349° |
| 5/2 | ≈ 68.1986° |
| 3 | ≈ 71.5651° |
| 4 | ≈ 75.9638° |
| 5 | ≈ 78.6901° |
FAQ
What is arctan(5/2)?
arctan(5/2) ≈ 68.1986° ≈ 1.1903 rad
How to convert arctan(5/2) to radians?
Multiply the angle in degrees by π/180: 68.1986° × π/180 ≈ 1.1903 rad.
Why does a calculator show 1.1903 for arctan(5/2)?
The calculator is in radian mode (RAD) and gives the angle in radians: arctan(5/2) ≈ 1.1903 rad. In degrees (DEG) it is ≈ 68.1986°.
See Also
- Arctan of 2 (Inverse Tangent) in Degrees and Radians
- Arctan of 2/3 (Inverse Tangent) in Degrees and Radians
- Arctan of 2/5 (Inverse Tangent) in Degrees and Radians
- Arctan of 3 (Inverse Tangent) in Degrees and Radians
- Arctan of 3/2 (Inverse Tangent) in Degrees and Radians
- Arctan of 3/4 (Inverse Tangent) in Degrees and Radians
- Arctan of 3/5 (Inverse Tangent) in Degrees and Radians
- Arctan of 4 (Inverse Tangent) in Degrees and Radians
- Arctan of 4/5 (Inverse Tangent) in Degrees and Radians
- Arctan of 5 (Inverse Tangent) in Degrees and Radians
- Arctan of 5/3 (Inverse Tangent) in Degrees and Radians
- Arctan of 5/6 (Inverse Tangent) in Degrees and Radians
- Arctan of 6 (Inverse Tangent) in Degrees and Radians
- Arctan of 7 (Inverse Tangent) in Degrees and Radians
- Arctan of 10 (Inverse Tangent) in Degrees and Radians
- Arctan of 20 (Inverse Tangent) in Degrees and Radians
- Arctan of 30 (Inverse Tangent) in Degrees and Radians
- Arctan of 60 (Inverse Tangent) in Degrees and Radians
- Arctan of √3 (Inverse Tangent) in Degrees and Radians
- Arctan of √3/3 (Inverse Tangent) in Degrees and Radians
- Арктангенс 5/2 (arctg 5/2) в градусах и радианах
- Arcotangente de 5/2 (arctan 5/2) en grados y radianes
- Arco tangente de 5/2 (arctg 5/2) em graus e radianos