Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: To calculate them: Divide the length of one side by another side. Example: …

In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. …

Effortlessly find trigonometric function values (sin, cos, tan, cot) or solve for missing sides or angles in a right triangle using our remarkable tool crafted by experts.

Tangent calculator to easily calculate the tan function of any angle. Calculate cos (x) with this trigonometry calculator which accepts degrees and radians.

On the unit circle, tan⁡ (θ) is the length of the line segment formed by the intersection of the line x=1 and the ray formed by the terminal side of the angle as shown in blue in the figure above.

In a right triangle ABC the tangent of α, tan (α) is defined as the ratio betwween the side opposite to angle α and the side adjacent to the angle α: tan α = a / b

Nov 20, 2025 · The tangent function is the ratio of sine to cosine (tan θ = sin θ/cos θ), and the cotangent function is the ratio of cosine to sine (cot θ = cos θ/sin θ).

Tangent can be defined here as the ratio of the y-coordinate to the x-coordinate – that is, tan (θ) = sin (θ) / cos (θ). In other words, tan θ equals the sine of θ divided by the cosine of θ.

The ratio of the length of the opposite side to that of the adjacent side in any right-angled triangle is said to be the tan function. Learn the formula using solved examples.

The tan function, also known as the tangent function, is the ratio of the opposite side of an angle to the adjacent side of a right-angled triangle. The tangent calculator computes tan values, …