Cot 1 Degree

Sin, Cos, Tan, Cot of an Angle
Function
Angle (°)

What is cot 1°?

Answer

cot 1° ≈
57.2900

Angle in radians: 1° = π/180. The point of the angle is in quadrant I, where cotangent is positive.

≈ — rounded to 4 decimal places. cot 1° can't be written with square roots: 1° is not a multiple of 3°.

cot 1° = cos 1° / sin 1° ≈ 57.2900

xyOP

P(cos 1°, sin 1°) ≈ (0.9998, 0.0175)

C(cot 1°, 1) ≈ (57.2900, 1) — where line OP meets the line y = 1; C is beyond the drawing, the arrow points to it.

All four functions of 1°
FunctionExact valueDecimal
sin 1°—≈ 0.0175
cos 1°—≈ 0.9998
tan 1°—≈ 0.0175
cot 1°—≈ 57.2900

See Also

Recalculate with different values ↑

Cotangent of nearby angles

Anglecot
0°undefined
1°≈ 57.2900
2°≈ 28.6363
3°≈ 19.0811
4°≈ 14.3007
5°≈ 11.4301
6°≈ 9.5144

FAQ

What is cot 1°?

cot 1° ≈ 57.2900

Why does cot 1° 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°. 1° is not, so no such exact form exists; the value is used as a decimal: cot 1° ≈ 57.2900.

Why does a calculator show 0.6421 for cot 1?

The calculator is in radian mode (RAD): it takes cot 1 as the cotangent of 1 radian, cot 1 rad ≈ 0.6421. Switch it to degrees (DEG): cot 1° ≈ 57.2900. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

See Also