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: What is the sine of 35°? Using this triangle (lengths are only to one decimal place): = …

In geometry, the tangent line (or simply tangent) to a plane curve at a given point is, intuitively, the straight line that "just touches" the curve at that point. Leibniz defined it as the line through a pair of infinitely close points on the curve.

The meaning of TANGENT is an abrupt change of course : digression. How to use tangent in a sentence.

Tangent. Tangent, written as tan⁡(θ), is one of the six fundamental trigonometric functions. Tangent definition. Tangent, like other trigonometric functions, is typically defined in terms of right triangles and in terms of the unit circle. The right-angled triangle definition of trigonometric functions is most often how they are introduced ...

In Geometry, the tangent is defined as a line touching circles or an ellipse at only one point. Suppose a line touches the curve at P, then the point “P” is called the point of tangency. In other words, it is defined as the line which represents the slope of a curve at that point.

This page explains the sine, cosine, tangent ratio, gives on an overview of their range of values and provides practice problems on identifying the sides that are opposite and adjacent to a given angle. The Sine, Cosine and Tangent functions express the ratios of sides of a right triangle.

2025年2月14日 · tangent, one of the six trigonometric functions, which, in a right triangle ABC, for an angle A, is tan A = length of side opposite angle A / length of side adjacent to angle A. The other five trigonometric functions are sine (sin), cosine (cos), secant (sec), cosecant (csc), and cotangent (cot).

2025年3月5日 · The tangent function is defined by tanx=(sinx)/(cosx), (1) where sinx is the sine function and cosx is the cosine function. The notation tgx is sometimes also used (Gradshteyn and Ryzhik 2000, p. xxix).

Illustrated definition of Tangent (line): A line that just touches a curve at a point, matching the curve's slope there. (From the Latin tangens...

2025年1月10日 · The word “tangent” comes from “tangens”, meaning touching or extending (the line that touches the circle at one point). The term “tangent” referring to an angle was first used by the Danish mathematician Thomas Fincke in 1583.