Algebra
Exercise 3_20
Find the solution of: Solution: Let’s square the two sides:We get: Adding similar terms we get: Multiplying both sides by Let’s square both sides another time: Divide by 2: Let’s factor:The equality is true if […]
Trigonométrie
Fonctions hyperboliques
Fonctions hyperboliques Nous avons déjà utilisé les fonctions hyperboliques dans certains de nos passages. Ce qui suit n’est qu’un sommaire qui pourra nous permettre d’utiliser ces fonctions dans des passages qui suivront. Nous examinerons leurs […]
Calculus
The Definite Integral
The Definite Integral After an extensive study of integration techniques, we are now ready to use the antiderivatives in practical situations. The definite integral is used to calculate areas, lengths, volumes and other complicated things […]
Trigonometry
Trigonometric formulas and identities
Trigonometric formulas and identities Since we have seen all the basic formulas, we are going to start listing them now and prepare for problem solving. In some cases, We’ll add some extra steps to show […]
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 […]
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