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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 …

  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 - 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.

  5. 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 …

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

    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 - Math Open Reference

    One of the trigonometry functions. In a right triangle, the tangent of an angle is the opposite side over the adjacent side. For more on this see Trigonometry tangent function.