Cot 19 Degrees

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

What is cot 19°?

Answer

cot 19° ≈
2.9042

Angle in radians: 19° = 19π/180. The point of the angle is in quadrant I, where cotangent is positive.

≈ — rounded to 4 decimal places. cot 19° can't be written with square roots: 19° is not a multiple of 3°.

cot 19° = cos 19° / sin 19° ≈ 2.9042

xyOP

P(cos 19°, sin 19°) ≈ (0.9455, 0.3256)

C(cot 19°, 1) ≈ (2.9042, 1) — where line OP meets the line y = 1; C is beyond the drawing, the arrow points to it.

All four functions of 19°
FunctionExact valueDecimal
sin 19°—≈ 0.3256
cos 19°—≈ 0.9455
tan 19°—≈ 0.3443
cot 19°—≈ 2.9042

See Also

FAQ

What is cot 19°?

cot 19° ≈ 2.9042

Why does cot 19° 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°. 19° is not, so no such exact form exists; the value is used as a decimal: cot 19° ≈ 2.9042.

Why does a calculator show 6.5968 for cot 19?

The calculator is in radian mode (RAD): it takes cot 19 as the cotangent of 19 radians, cot 19 rad ≈ 6.5968. Switch it to degrees (DEG): cot 19° ≈ 2.9042. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.