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  2. Law of cotangents - Wikipedia

    en.wikipedia.org/wiki/Law_of_cotangents

    In trigonometry, the law of cotangents is a relationship among the lengths of the sides of a triangle and the cotangents of the halves of the three angles. [1] [2]Just as three quantities whose equality is expressed by the law of sines are equal to the diameter of the circumscribed circle of the triangle (or to its reciprocal, depending on how the law is expressed), so also the law of ...

  3. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    3.1 Calculate the factor. 3.2 Calculate the numbers. 4 Software tools. ... the numerical calculation of a formula can be done by first working out the factor, ...

  4. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    A formula for computing the trigonometric identities for the one-third angle exists, but it requires finding the zeroes of the cubic equation 4x 3 − 3x + d = 0, where is the value of the cosine function at the one-third angle and d is the known value of the cosine function at the full angle.

  5. Exact trigonometric values - Wikipedia

    en.wikipedia.org/wiki/Exact_trigonometric_values

    In mathematics, the values of the trigonometric functions can be expressed approximately, as in ⁡ (/), or exactly, as in ⁡ (/) = /.While trigonometric tables contain many approximate values, the exact values for certain angles can be expressed by a combination of arithmetic operations and square roots.

  6. Formula One engines - Wikipedia

    en.wikipedia.org/wiki/Formula_One_engines

    After Formula One was more or less 'ratified' or accepted by other countries, Formula Two was defined in 1947 as "up to 500 cc supercharged, or 2,000 cc without". [24] In contrast to the pre-existed European Drivers' Championship, [note 1] Formula One events were meant to be competition among the countries. Each car, or team, represented a ...

  7. Cadillac in Formula One - Wikipedia

    en.wikipedia.org/wiki/Cadillac_in_Formula_One

    Formula One Group CEO Stefano Domenicali stated that GM's commitment to the project was an "important and positive demonstration of the evolution of [the] sport". [13] In December, the team hired former Virgin and Marussia CEO Graeme Lowdon as team principal and Renault engine specialist Rob White as chief operations officer.

  8. Area of a triangle - Wikipedia

    en.wikipedia.org/wiki/Area_of_a_triangle

    Taking L to be the x-axis, the line integral between consecutive vertices (x i,y i) and (x i+1,y i+1) is given by the base times the mean height, namely (x i+1 − x i)(y i + y i+1)/2. The sign of the area is an overall indicator of the direction of traversal, with negative area indicating counterclockwise traversal.

  9. Inverse trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/Inverse_trigonometric...

    [1] [10] Another precarious convention used by a small number of authors is to use an uppercase first letter, along with a “ −1 ” superscript: Sin −1 (x), Cos −1 (x), Tan −1 (x), etc. [11] Although it is intended to avoid confusion with the reciprocal, which should be represented by sin −1 (x), cos −1 (x), etc., or, better, by ...