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 […]
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 […]
Représentation graphique des fonctions trigonométriques
Représentation graphique des fonctions trigonométriques Pour voir ces fonctions trigonométriques de façon claire, nous allons les représenter sur les mêmes graphiques que leurs reciproques. Cele signifie que la courbe et la courbe seront ensemble. Cela […]
Algebra
Matrix Calculation
Introduction to matrices Introduction to Matrices Before we start solving multiple equations, I have to introduce the matrix calculations. Tables can be represented by what we call matrices. A matrix is a type of rectangular […]
Trigonometry
Selected Trigonometry Exercises
Selected Trigonometry Exercises These are the selected trigonometry exercises and problems to solidify the concepts shown in this site. Exercise 1: A surveyor observes that at a point , located on level ground a distance […]
Areas of circles and triangles
Areas of circles and triangles Perimeter of a triangle: The perimeter of a triangle is the sum of its 3 sides. In the following figure we have: is the of the triangle.
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