Trigonometry
Spherical trigonometry
Spherical trigonometry The spherical trigonometry is the branch of spherical geometry which deals with spherical triangles defined by great circles on the sphere. It allows us to calculate the trigonometric functions of the sides and […]
Algebra
Sequences and series
Sequences and series This is a quick summary of sequences and series for a refresh purpose only. We will explore various situations so we can get up and running in problems involving series. When we […]
Algèbre
Identités remarquables
Identités remarquables Nous avons déjà utilisé les identités remarquables dans beaucoup d’exercices. Il est important de connaître les identités remarquables et de savoir les utiliser quand l’occasion se présente. Nous n’avons pas parlé de binôme […]
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. […]
Algebra
FACTORING BASICS
FACTORING: Factoring is another step we must refresh to be able to simplify and solve equations. Simply put, if we cannot factor, chances are that we cannot simplify. For a giving number, we have to […]
Algebra
Absolute value
Absolute value The best way to try to understand the absolute-value is to look at the number line.If we take any number on the number line, its distance from zero is its absolute value. The […]
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