Tan 68 Degrees
Sin, Cos, Tan, Cot of an Angle
What is tan 68°?
Answer
tan 68° ≈
2.4751
Angle in radians: 68° = 17π/45. The point of the angle is in quadrant I, where tangent is positive.
≈ — rounded to 4 decimal places. tan 68° can't be written with square roots: 68° is not a multiple of 3°.
tan 68° = sin 68° / cos 68° ≈ 2.4751
P(cos 68°, sin 68°) ≈ (0.3746, 0.9272)
T(1, tan 68°) ≈ (1, 2.4751) — where line OP meets the line x = 1; T is beyond the drawing, the arrow points to it.
See Also
- Arcsin, Arccos, Arctan, Arccot - The angle from the value of its sine, cosine, tangent or cotangent: exact in degrees and π, with the check and the unit circle
- Square Root Calculator - Calculate the square root of any number
- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
- Geometry Formulas: Area, Volume, Perimeter - The formula for every standard shape, where it comes from, and worked examples
Tangent of nearby angles
FAQ
What is tan 68°?
tan 68° ≈ 2.4751
Why does tan 68° 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°. 68° is not, so no such exact form exists; the value is used as a decimal: tan 68° ≈ 2.4751.
Why does a calculator show −2.0401 for tan 68?
The calculator is in radian mode (RAD): it takes tan 68 as the tangent of 68 radians, tan 68 rad ≈ −2.0401. Switch it to degrees (DEG): tan 68° ≈ 2.4751. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.
See Also
- Tan 58 Degrees: Tangent of 58° on the Unit Circle
- Tan 59 Degrees: Tangent of 59° on the Unit Circle
- Tan 60 Degrees: Tangent of 60° on the Unit Circle
- Tan 61 Degrees: Tangent of 61° on the Unit Circle
- Tan 62 Degrees: Tangent of 62° on the Unit Circle
- Tan 63 Degrees: Tangent of 63° on the Unit Circle
- Tan 64 Degrees: Tangent of 64° on the Unit Circle
- Tan 65 Degrees: Tangent of 65° on the Unit Circle
- Tan 66 Degrees: Tangent of 66° on the Unit Circle
- Tan 67 Degrees: Tangent of 67° on the Unit Circle
- Tan 69 Degrees: Tangent of 69° on the Unit Circle
- Tan 70 Degrees: Tangent of 70° on the Unit Circle
- Tan 71 Degrees: Tangent of 71° on the Unit Circle
- Tan 72 Degrees: Tangent of 72° on the Unit Circle
- Tan 73 Degrees: Tangent of 73° on the Unit Circle
- Tan 74 Degrees: Tangent of 74° on the Unit Circle
- Tan 75 Degrees: Tangent of 75° on the Unit Circle
- Tan 76 Degrees: Tangent of 76° on the Unit Circle
- Tan 77 Degrees: Tangent of 77° on the Unit Circle
- Tan 78 Degrees: Tangent of 78° on the Unit Circle
- Тангенс 68 градусов (tg 68°) на единичной окружности
- Tangente de 68 grados (tan 68°) en el círculo unitario
- Tangente de 68 graus (tg 68°) no ciclo trigonométrico