Secant is a term in mathematics derived from the Latin secare ("to cut"). It may refer to: a secant line, in geometry; the secant variety, in algebraic geometry; secant (trigonometry) (Latin: secans), the multiplicative inverse (or reciprocal) trigonometric function of the cosine

In geometry, a secant is a line that intersects a curve at a minimum of two distinct points. [1] The word secant comes from the Latin word secare, meaning to cut. [2] In the case of a circle, a secant intersects the circle at exactly two points.

secant, one of the six trigonometric functions, which, in a right triangle ABC, for an angle A, is sec A = length of hypotenuse / length of side adjacent angle A. (The other five trigonometric functions are sine [sin], cosine [cos], tangent [tan], cosecant [csc], and cotangent [cot].)

In a right triangle, the secant of an angle is the length of the hypotenuse divided by the length of the adjacent side. In a formula, it is abbreviated to just 'sec'. Of the six possible trigonometric functions, secant, cotangent, and cosecant, are rarely used.

The secant function or sec function can be defined as the ratio of the length of the hypotenuse to that of the length of the base in a right-angled triangle. What is Secant in terms of Cos? Secant function in terms of cos is written as sec x = 1 / cos x. Where is the Secant Function Not Defined?

A secant line intersects two or more points on a curve. (From the Latin secare "cut or sever") They are lines, so extend in both directions infinitely. Circle. On a circle they look like this: Theorems. There are three theorems of interest here: Intersecting Secants …

2025年3月7日 · The secant function, \sec \theta , is defined as the reciprocal of the cosine function. Let’s explore some key characteristics: Domain: The secant function is undefined where cosine equals zero. Therefore, its domain excludes angles like 90^\circ and 270^\circ . Range of Secant Function: Secant values can range from (-\infty, -1] \cup [1 ...

: a straight line cutting a curve at two or more points. : a straight line drawn from the center of a circle through one end of a circular arc to a tangent drawn from the other end of the arc.

Secant, cosecant and cotangent, almost always written as sec, cosec and cot are trigonometric functions like sin, cos and tan. sec x = 1 cos x. cosec x = 1 sin x cot x = 1 = cos x tan x sin x. Note, sec x is not the same as cos-1 x (sometimes written as arccos x).

Illustrated definition of Secant (function): In a right angled triangle, the secant of an angle is: The length of the hypotenuse divided by the length of...