Cot 77 Degrees

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

What is cot 77°?

Answer

cot 77° ≈
0.2309

Angle in radians: 77° = 77π/180. The point of the angle is in quadrant I, where cotangent is positive.

≈ — rounded to 4 decimal places. cot 77° can't be written with square roots: 77° is not a multiple of 3°.

cot 77° = cos 77° / sin 77° ≈ 0.2309

xyOP

P(cos 77°, sin 77°) ≈ (0.2250, 0.9744)

C(cot 77°, 1) ≈ (0.2309, 1) — where line OP meets the line y = 1.

All four functions of 77°
FunctionExact valueDecimal
sin 77°—≈ 0.9744
cos 77°—≈ 0.2250
tan 77°—≈ 4.3315
cot 77°—≈ 0.2309

See Also

Recalculate with different values ↑

Cotangent of nearby angles

Anglecot
74°≈ 0.2867
75°2 − √3
76°≈ 0.2493
77°≈ 0.2309
78°≈ 0.2126
79°≈ 0.1944
80°≈ 0.1763

FAQ

What is cot 77°?

cot 77° ≈ 0.2309

Why does cot 77° 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°. 77° is not, so no such exact form exists; the value is used as a decimal: cot 77° ≈ 0.2309.

Why does a calculator show −0.0310 for cot 77?

The calculator is in radian mode (RAD): it takes cot 77 as the cotangent of 77 radians, cot 77 rad ≈ −0.0310. Switch it to degrees (DEG): cot 77° ≈ 0.2309. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

See Also