UB Concours d'Entrée study materials
UB Concours d'Entrée study resources

UB Concours d'Entrée key terms

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Dérivée

Function giving the instantaneous rate of change of another function at each point, computed as the limit of a difference quotient; it measures slope of the tangent line and underlies optimization and motion problems.

Related: Limite, Intégrale
Limite

Value that a sequence or function approaches as its input approaches a given point or grows without bound; the foundation on which continuity, derivatives and integrals are formally defined.

Related: Dérivée, Continuité
Intégrale

Accumulated total of a function over an interval, interpreted as signed area under its curve; computed exactly using antiderivatives via the fundamental theorem of calculus.

Related: Dérivée, Primitive
Primitive

A function whose derivative equals a given function; every continuous function has infinitely many primitives differing by an additive constant, used to evaluate definite integrals.

Related: Intégrale, Dérivée
Suite arithmétique

Sequence in which each term is obtained by adding a fixed constant to the previous one; its general term is linear in the index and its partial sums grow quadratically.

Related: Suite géométrique, Limite
Suite géométrique

Sequence in which each term equals the previous term multiplied by a fixed ratio; its behaviour depends on whether that ratio has absolute value below, equal to, or above one.

Related: Suite arithmétique, Limite
Probabilité conditionnelle

Probability that an event occurs given that another event is known to have occurred, defined as the joint probability divided by the probability of the conditioning event when that is nonzero.

Related: Indépendance, Espérance
Espérance

Weighted average value of a random variable, each outcome weighted by its probability; it describes the long-run mean of repeated independent trials of the same experiment.

Related: Probabilité conditionnelle, Variable aléatoire
Variable aléatoire

Numerical function defined on the outcomes of a random experiment, assigning a real number to each possible result so that probabilities of numerical events can be computed.

Related: Espérance, Loi binomiale
Loi binomiale

Probability distribution counting the number of successes in a fixed number of independent trials, each with the same success probability; specified by two parameters, trial count and success probability.

Related: Variable aléatoire, Indépendance
Indépendance

Property of two events where the occurrence of one does not change the probability of the other, equivalently their joint probability equals the product of their individual probabilities.

Related: Probabilité conditionnelle, Loi binomiale
Continuité

Property of a function whose value at each point equals its limit there, so its graph has no breaks; on a closed interval it guarantees bounds and intermediate values.

Related: Limite, Théorème des valeurs intermédiaires
Théorème des valeurs intermédiaires

Result stating that a continuous function on a closed interval attains every value between its endpoint values; used to prove existence of solutions to equations.

Related: Continuité, Limite
Nombre complexe

Number written in the form a + bi where a and b are real and i squared equals minus one; it can be represented as a point in the plane with modulus and argument.

Related: Module, Argument
Module

Non-negative distance from the origin to the point representing a complex number in the plane; it equals the square root of the sum of squares of real and imaginary parts.

Related: Nombre complexe, Argument
Argument

Angle, measured from the positive real axis, locating the point that represents a complex number in the plane; it is defined up to addition of full turns.

Related: Nombre complexe, Module
Matrice

Rectangular array of numbers arranged in rows and columns, supporting addition and multiplication under dimension constraints; used to encode linear systems and linear transformations compactly.

Related: Déterminant, Système linéaire
Déterminant

Scalar assigned to a square matrix that indicates whether the matrix is invertible and measures how the associated linear transformation scales areas or volumes.

Related: Matrice, Système linéaire
Système linéaire

Collection of linear equations in several unknowns solved simultaneously; its solution set is described using matrix row reduction and depends on rank and consistency conditions.

Related: Matrice, Déterminant
Figure de style

Deliberate deviation from ordinary expression used for expressive effect, such as comparison, metaphor, hyperbole or anaphora; identified and interpreted in literary commentary and text analysis.

Related: Métaphore, Champ lexical
Métaphore

Figure of speech that transfers meaning by asserting an implicit resemblance between two things without a comparative word, unlike a simile which uses an explicit comparison marker.

Related: Figure de style, Champ lexical
Champ lexical

Set of words in a text sharing a common semantic theme, such as terms of seafaring or of grief; its identification supports interpretation of tone and subject matter.

Related: Figure de style, Registre de langue
Registre de langue

Level of language used in a text or utterance, such as formal, standard or familiar, determined by vocabulary, syntax and social context; it shapes tone and characterization.

Related: Champ lexical, Narrateur
Narrateur

Voice that tells a narrative, distinct from the author; its position, knowledge and reliability determine focalization and how the reader receives the story's events.

Related: Focalisation, Registre de langue
Focalisation

Perspective from which a narrative is presented, ranging from omniscient narration to restricted or external viewpoint; it controls what information the reader can access.

Related: Narrateur, Figure de style
Thèse

Central claim that a philosophical or argumentative text defends, supported by premises and reasoning; identifying it is the first step in analysing an argument.

Related: Argument, Sophisme
Argument

Set of premises offered as reasons supporting a conclusion; assessed for validity, meaning the conclusion follows from the premises, and for soundness of those premises.

Related: Thèse, Sophisme
Sophisme

Reasoning that appears persuasive but is logically flawed, such as attacking a person instead of the claim or begging the question; recognized and named in critical analysis.

Related: Argument, Thèse
Cogito

Descartes' argument that the very act of doubting proves the existence of a thinking subject; it serves as a first indubitable foundation for knowledge.

Related: Thèse, Empirisme
Empirisme

Philosophical position holding that knowledge derives from sensory experience rather than innate ideas; associated with thinkers who treat the mind as receiving impressions from observation.

Related: Cogito, Argument
Loi de la demande

Economic principle stating that, other things equal, quantity demanded of a good falls as its price rises; it explains the downward slope of a demand curve.

Related: Inflation, PIB
PIB

Total market value of final goods and services produced within a country's borders during a period; a standard measure of economic output, though it omits unpaid work and inequality.

Related: Inflation, Loi de la demande
Inflation

Sustained rise in the general price level, reducing the purchasing power of money; measured by changes in a consumer price index and often targeted by central banks.

Related: PIB, Loi de la demande
Loi d'Ohm

Relation stating that voltage across a conductor equals current through it multiplied by its resistance; valid for ohmic materials at constant temperature.

Related: Circuit en série, Puissance électrique
Circuit en série

Electrical arrangement in which components are connected one after another so the same current flows through each, while voltages add across the components.

Related: Loi d'Ohm, Circuit en parallèle
Circuit en parallèle

Electrical arrangement in which components are connected across the same two nodes, so each experiences the same voltage while currents divide among the branches.

Related: Loi d'Ohm, Circuit en série
Puissance électrique

Rate at which electrical energy is transferred or dissipated by a component, equal to voltage multiplied by current; measured in watts in the international system.

Related: Loi d'Ohm, Circuit en série
Photosynthèse

Process by which green plants, algae and some bacteria use light energy to convert carbon dioxide and water into organic compounds, releasing oxygen as a by-product.

Related: Respiration cellulaire, Chlorophylle
Respiration cellulaire

Series of metabolic reactions in which cells break down organic molecules, typically glucose, to release usable energy stored in ATP, consuming oxygen in aerobic forms.

Related: Photosynthèse, ADN
ADN

Double-stranded molecule carrying genetic instructions in the sequence of its nucleotide bases; it is replicated before cell division and transcribed into RNA for protein synthesis.

Related: Mitose, Respiration cellulaire
Mitose

Type of cell division producing two genetically identical daughter cells, used for growth and repair; it proceeds through prophase, metaphase, anaphase and telophase stages.

Related: ADN, Photosynthèse
Chlorophylle

Green pigment in chloroplasts that absorbs light, mainly in red and blue wavelengths, and transfers the captured energy to the reactions of photosynthesis.

Related: Photosynthèse, Respiration cellulaire
Topic sentence

Sentence, usually first in a paragraph, stating the paragraph's main idea and controlling its content; it guides the supporting details that follow and improves coherence.

Related: Cohesion, Thesis statement
Thesis statement

Concise sentence near the start of an essay that presents the central claim the essay will defend; it should be specific, arguable and preview the line of reasoning.

Related: Topic sentence, Cohesion
Cohesion

Quality of a text whose sentences and paragraphs are linked smoothly through connectors, pronouns and consistent terminology, so the reader follows the argument without confusion.

Related: Topic sentence, Thesis statement
False friend

Word in a second language that resembles a word in one's own language but differs in meaning, such as a term that looks familiar yet translates differently; a common source of error.

Related: Cohesion, Topic sentence
Séparation des pouvoirs

Constitutional principle dividing state authority among legislative, executive and judicial branches so that each limits the others and no single body holds unchecked power.

Related: État de droit, Souveraineté
État de droit

Political system in which public authority is itself bound by law, with independent courts able to review official acts and protect individual rights against arbitrary power.

Related: Séparation des pouvoirs, Souveraineté
Souveraineté

Supreme authority within a state to make and enforce law over its territory, and the corresponding independence of that state from external control in international affairs.

Related: Séparation des pouvoirs, État de droit
Développement durable

Model of development meeting present needs without compromising the ability of future generations to meet theirs, balancing economic, social and environmental concerns.

Related: Souveraineté, État de droit