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  1. Tangent - Wikipedia

    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.

  2. Sine, Cosine and Tangent - Math is Fun

    Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a Right-Angled Triangle. Before getting stuck into the functions, it helps to give a name to each side of a right …

  3. TANGENT Definition & Meaning - Merriam-Webster

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

  4. Tangent | Definition, Formulas, & Facts | Britannica

    Jan 2, 2026 · The tangent is one of the six fundamental trigonometric functions in mathematics. In a right triangle, it is the ratio of the length of the side opposite a given angle to the length of the side …

  5. Tangent - Math.net

    The graph of tangent is periodic, meaning that it repeats itself indefinitely. Unlike sine and cosine however, tangent has asymptotes separating each of its periods.

  6. Tangent in Maths: Definition, Formula, Equation & Examples - Vedantu

    A tangent in maths is a straight line that touches a curve or circle at exactly one point, called the point of contact or tangency, without crossing the curve at that location.

  7. Tangent in trigonometry made simple - Andrea Minini

    The word "tangent" comes from the Latin "tangere," meaning "to touch." Geometrically, the tangent is a line segment perpendicular to the x-axis, originating at point C and intersecting the extended side OP.

  8. Tangent to Circle, Meaning, Properties, Examples - Cuemath

    Tangent in geometry is defined as a line or plane that touches a curve or a curved surface at exactly one point. Learn about tangent definition along with properties and theorems.

  9. tan (x) | tangent function - RapidTables.com

    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

  10. Tangent -- from Wolfram MathWorld

    Dec 22, 2025 · 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 …