Arctan of −0.3
Arcsin, Arccos, Arctan, Arccot
What is arctan(−0.3)?
Answer
arctan(−0.3) ≈
−16.6992° ≈ −0.2915 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.
arctan(−0.3) is the angle α in (−90°, 90°) with tan α = −0.3.
arctan(−0.3) = −arctan(0.3) ≈ −16.6992°
tan(−16.6992°) ≈ −0.3000
α = arctan(−0.3) ≈ −16.6992°
P ≈ (0.9578, −0.2873)
T(1, −0.3) is where line OP meets the line x = 1; highlighted: tan α = −0.3.
| Function | Degrees | Radians |
|---|---|---|
| arcsin(−0.3) | ≈ −17.4576° | ≈ −0.3047 |
| arccos(−0.3) | ≈ 107.4576° | ≈ 1.8755 |
| arctan(−0.3) | ≈ −16.6992° | ≈ −0.2915 |
| arccot(−0.3) | ≈ 106.6992° | ≈ 1.8623 |
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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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Arctangent of nearby values
| x | arctan x |
|---|---|
| −1 | −45° = −π/4 |
| −4/5 | ≈ −38.6598° |
| −√3/3 | −30° = −π/6 |
| −0.3 | ≈ −16.6992° |
| 0 | 0° = 0 |
| 0.1 | ≈ 5.7106° |
| 1/5 | ≈ 11.3099° |