Mouctar Online – Math Site

The passing Airplane

March 29, 2020 0

The passing Airplane The passing Airplane A navigator on board a ship at anchormeasures the angle of inclination of 28 degrees to an approaching airplane at exactly 10:59:50Hrs. The altitude of the plane at that […]

Matrix Calculation

May 7, 2020 0

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 […]

Sum and difference formulas

August 17, 2023 0

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 […]

Solved Samples

April 22, 2020 0

Exercise:MD03CE Hands-on: Pythagorean theorem: A right triangle has one of the legs 68 meters longer than the other. The semi-perimeter of the triangle is equal to 112 meters. Find the hypotenuse and the two legs. […]

Inequalities

April 22, 2020 0

Inequalities Inequalities appear to us in many forms. Imagine that we want to express the following sentence in an equation: The total number of cars parked here is at least 50. If this total is […]

Factoring

March 25, 2020 0

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 […]

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 [...]
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. [...]
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 .
Trigonometry

Graphs of Elementary Trigonometric Functions

Graphs of Elementary Trigonometric Functions To see the functions in a clear manner, we’ll graph the trigonometric functions on the same graph as their reciprocals This means that the curve and the curve are graphed [...]

Intersecting curves. Simultaneous Equations.