Cot 98 Degrees
Sin, Cos, Tan, Cot of an Angle
What is cot 98°?
Answer
cot 98° ≈
−0.1405
Angle in radians: 98° = 49π/90. The point of the angle is in quadrant II, where cotangent is negative.
≈ — rounded to 4 decimal places. cot 98° can't be written with square roots: 98° is not a multiple of 3°.
cot 98° = cot(180° − 82°) = −cot 82° ≈ −0.1405
cot 98° = cos 98° / sin 98° ≈ −0.1405
P(cos 98°, sin 98°) ≈ (−0.1392, 0.9903)
C(cot 98°, 1) ≈ (−0.1405, 1) — where line OP meets the line y = 1.
See Also
- Arcsin, Arccos, Arctan, Arccot - The angle from the value of its sine, cosine, tangent or cotangent: exact in degrees and π, with the check and 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
- Geometry Formulas: Area, Volume, Perimeter - The formula for every standard shape, where it comes from, and worked examples
Cotangent of nearby angles
FAQ
What is cot 98°?
cot 98° ≈ −0.1405
Why does cot 98° have no exact value?
A trigonometric value of a whole number of degrees can be written with square roots only when the angle is a multiple of 3°. 98° is not, so no such exact form exists; the value is used as a decimal: cot 98° ≈ −0.1405.
Why does a calculator show 1.4289 for cot 98?
The calculator is in radian mode (RAD): it takes cot 98 as the cotangent of 98 radians, cot 98 rad ≈ 1.4289. Switch it to degrees (DEG): cot 98° ≈ −0.1405. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.
See Also
- Cot 82 Degrees: Cotangent of 82° on the Unit Circle
- Cot 83 Degrees: Cotangent of 83° on the Unit Circle
- Cot 84 Degrees: Cotangent of 84° on the Unit Circle
- Cot 85 Degrees: Cotangent of 85° on the Unit Circle
- Cot 86 Degrees: Cotangent of 86° on the Unit Circle
- Cot 87 Degrees: Cotangent of 87° on the Unit Circle
- Cot 88 Degrees: Cotangent of 88° on the Unit Circle
- Cot 89 Degrees: Cotangent of 89° on the Unit Circle
- Cot 90 Degrees: Cotangent of 90° on the Unit Circle
- Cot 97 Degrees: Cotangent of 97° on the Unit Circle
- Cot 100 Degrees: Cotangent of 100° on the Unit Circle
- Cot 101 Degrees: Cotangent of 101° on the Unit Circle
- Cot 105 Degrees: Cotangent of 105° on the Unit Circle
- Cot 106 Degrees: Cotangent of 106° on the Unit Circle
- Cot 108 Degrees: Cotangent of 108° on the Unit Circle
- Cot 110 Degrees: Cotangent of 110° on the Unit Circle
- Cot 120 Degrees: Cotangent of 120° on the Unit Circle
- Cot 125 Degrees: Cotangent of 125° on the Unit Circle
- Cot 126 Degrees: Cotangent of 126° on the Unit Circle
- Cot 127 Degrees: Cotangent of 127° on the Unit Circle
- Котангенс 98 градусов (ctg 98°) на единичной окружности
- Cotangente de 98 grados (cot 98°) en el círculo unitario
- Cotangente de 98 graus (cotg 98°) no ciclo trigonométrico