what is mean by secant
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In geometry, a secant of a curve is a line that intersects the curve in at least two (distinct) points.
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In geometry, a secant of a curve is a line that intersects the curve in at least two (distinct) points. The word secant comes from the Latin word secare, meaning to cut.
Secant Line. A secant line, also simply called a secant, is a line passing through two points of a curve. As the two points are brought together (or, more precisely, as one is brought towards the other), the secant line tends to a tangent line.
A chord is a line segment and both secant and tangents are straight lines. Chord is a line segment with the end points lying on a curve while a secant is a line passing through exact two points on a curve.
In a right angled triangle, the secant of an angle is: The length of the hypotenuse divided by the length of the adjacent side. The abbreviation is sec. sec(θ) = hypotenuse / adjacent. It is not commonly used, and is equal to 1/cosine.