Sin 26 Degrees

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

What is sin 26°?

Answer

sin 26° ≈
0.4384

Angle in radians: 26° = 13π/90. The point of the angle is in quadrant I, where sine is positive.

≈ — rounded to 4 decimal places. sin 26° can't be written with square roots: 26° is not a multiple of 3°.

P(cos 26°, sin 26°) ≈ (0.8988, 0.4384)

xyOP

P(cos 26°, sin 26°) ≈ (0.8988, 0.4384)

Highlighted: the projection on the y-axis — sine, y ≈ 0.4384.

All four functions of 26°
FunctionExact valueDecimal
sin 26°—≈ 0.4384
cos 26°—≈ 0.8988
tan 26°—≈ 0.4877
cot 26°—≈ 2.0503

See Also

Recalculate with different values ↑

Sine of nearby angles

Anglesin
23°≈ 0.3907
24°≈ 0.4067
25°≈ 0.4226
26°≈ 0.4384
27°≈ 0.4540
28°≈ 0.4695
29°≈ 0.4848

FAQ

What is sin 26°?

sin 26° ≈ 0.4384

Why does sin 26° 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°. 26° is not, so no such exact form exists; the value is used as a decimal: sin 26° ≈ 0.4384.

Why does a calculator show 0.7626 for sin 26?

The calculator is in radian mode (RAD): it takes sin 26 as the sine of 26 radians, sin 26 rad ≈ 0.7626. Switch it to degrees (DEG): sin 26° ≈ 0.4384. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

See Also