Cot 65 Degrees

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

What is cot 65°?

Answer

cot 65° ≈
0.4663

Angle in radians: 65° = 13π/36. The point of the angle is in quadrant I, where cotangent is positive.

≈ — rounded to 4 decimal places. cot 65° can't be written with square roots: 65° is not a multiple of 3°.

cot 65° = cos 65° / sin 65° ≈ 0.4663

xyOP

P(cos 65°, sin 65°) ≈ (0.4226, 0.9063)

C(cot 65°, 1) ≈ (0.4663, 1) — where line OP meets the line y = 1.

All four functions of 65°
FunctionExact valueDecimal
sin 65°—≈ 0.9063
cos 65°—≈ 0.4226
tan 65°—≈ 2.1445
cot 65°—≈ 0.4663

See Also

Recalculate with different values ↑

Cotangent of nearby angles

Anglecot
62°≈ 0.5317
63°≈ 0.5095
64°≈ 0.4877
65°≈ 0.4663
66°≈ 0.4452
67°≈ 0.4245
68°≈ 0.4040

FAQ

What is cot 65°?

cot 65° ≈ 0.4663

Why does cot 65° 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°. 65° is not, so no such exact form exists; the value is used as a decimal: cot 65° ≈ 0.4663.

Why does a calculator show −0.6803 for cot 65?

The calculator is in radian mode (RAD): it takes cot 65 as the cotangent of 65 radians, cot 65 rad ≈ −0.6803. Switch it to degrees (DEG): cot 65° ≈ 0.4663. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

See Also