Calculus
Formula for reducing the power of the integrand
The formula is used to lower the power of the integrand to more practical powers.If we have the following form: The general following formula should be used to solve this type of integrals. We will […]
Geometrie analytique
Challenge 1 Spring of 2017: Solution Trapèze par méthode Algébrique
Promotion de la Géometrie élémentaire En accord avec l’ institut-delbol.com, mouctar.org punlie en cette fin Septembre 2018 la solution du problème sur les parcelles. La deuxième partie du défi est ainsi résolue.Aucune réponse sur ce problème […]
Analytic geometry
Al-Kashi, Heron,Bretschneider’s, Brahmagupta’s and Coolidge formulas
The Bretscheiner’s formula helps find the area of a non-cyclic quadrilateral, that cannot be inscribed in a circle, using only side lengths and possibly one angle measure or one diagonal length. After the Bretschneider’s formula, […]
Trigonometry
Elementary trigonometric functions
Elementary trigonometric functions After having introduced the first three trigonometric functions of a given angle , now we are going to introduce their reciprocals. Secant: This is the reciprocal of the noted .
Trigonométrie
L’avion qui survole
MD05CF: L’avion qui survole, Trigonométrie Un navigateur à bord d’un navire au mouillage mesure l’angle inclinaison d’un avion qui approche et trouve 28 degrés. La measure a été faite à 10h 59m 50s. L’altitude de […]
Trigonometry
Sum and difference formulas
Sum and difference formulas We have seen in the past cases where we had to use these sum and difference formulas. At this stage, we are now exploring them to be able to use them […]
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