Algebra
The Art of Solving problems
In the following example, professor Alfred explains how we can save time by using the “poet’s” way, an elegant method, instead of what we call “Peasant’s” method.Most of us hurry up when faced with a […]
Trigonometry
Trigonometric functions: Tangent of an angle
Trigonometric functions: Tangent of an angle We are following our introduction to the trigonometric functions. It was necessary to go through some reminders in geometry to be able to understand the next topics in Trigonometry. […]
Geometry
CIRCLES IN ORBITS
CIRCLES IN ORBITS The length of segment is . The circles are in an orbit. Looking at the figure above, the circle is in orbit 1, circle is in orbit 2 and circle is in […]
Fonctions trigonométriques: Tangente d’un angle
Fonctions trigonométriques: Tangente d’un angle Nous poursuivons notre introduction sur les fonctions trigonométriques. Nous étions dans l’obligation de passer par des rappels en Géométrie pour pouvoir comprendre les sujets de Trigonométrie qui vont suivre. Nous avons […]
Geometrie analytique
Formules d’ Al-Kashi, Heron,Bretschneider, Brahmagupta et Coolidge
Laformule de Bretscheiner nous aide à trouver l’aire d’un quadrlatère qui n’est pas cyclique, ne pouvant autrement être inscrit dans un cercle, en utilisant seulement la longueur de ses quatres côtés et la mesure d’un angle […]
Calculus
Integration table
Integration table In the previous chapters, we have used an extensive amount of formulas for the indefinite integration. While we have not started the definite integrals calculation, it is handy to have some of the […]
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