Devoir Libre 1 S01
📅 October 26, 2025 | 👁️ Views: 918 | 📝 4 exercises | ❓ 12 questions
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This PDF covers maths exam for tronc-commun-sciences students. It includes 4 exercises and 12 questions. Designed to help you master the topic efficiently.
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\usepackage{amsmath,amsfonts,amssymb,mathrsfs,tikz,fancyhdr,array}
\usepackage[most]{tcolorbox}
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\usepackage{mathrsfs}
\usetikzlibrary{arrows}
\newcommand{\R}{\mathbb{R}}
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\newcolumntype{X}{p{0.3\linewidth}}
\newtcolorbox[auto counter]{exo}{breakable,enhanced,colback=gray!20,colframe=red,coltitle=black,attach boxed title to top left={yshift=-\tcboxedtitleheight/2 ,xshift=0.3cm},
boxed title style={size=small,colback=blue!30},title={Exercice \thetcbcounter},}
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\mathversion{bold}
\begin{document}
\begin{tcolorbox}[ detach title,enhanced,right=1mm]
\begin{tabular}{|X|X|X|}
\hline
&&\\[-2mm]
lycée: S.I.B.S \newline 2023/2024
&
\hspace*{1cm} \textbf{ Devoir libre N°1}\newline
\hspace*{1.5cm} semestre 1
&
Classe: TCSF1 \newline Pr: A.HAMOUCH\\[-3mm]&&\\\hline
\end{tabular}
\end{tcolorbox}
\begin{exo}
A- Soit $n$ un entier naturel. Tel que $x=n^{2}+3 n+4$ et $y=n^{2}-3 n+4$.\\
1- Montrer que $x$ et $y$ sont deux nombres pairs.\\
2- Montrer que $x y^{2}$ est un multiple du nombre 8.\\
B- On considère les deux nombres $a=2160$ et $b=4860$.\\
1- Décomposer en produit de facteurs premiers $a$ et $b$.\\
2- Calculer le PPCM $(a:b)$ et le PGCD$(a,b)$.\\
3- Simplifier les deux nombres $\sqrt{a}$ et $\sqrt{b}$ et $ \frac{a}{b}$.\\
4- En déduire que $\sqrt{a \times b}$ est un entier naturel.\\
\end{exo}
%%%%%%%%%%%%%%%%%%%
\begin{exo}
On considère les deux nombres : $a=2^3 \times 3^2 \times 7$\\
1. Montrer que 24 est un diviseur de $a$.\\
2. Déterminer le plus petit entier naturel $k$ tel que $ka$ soit un carré parfait.\\
3. Déterminer le plus petit entier naturel $m$ tel que $ma$ soit un cube d'un entier naturel.\\
4. Résoudre l'équation $(a,b) \in \mathbb{N} \times \mathbb{N}$ ; $(a+1)(b+6)=35$.
\end{exo}
%%%%%%%%%%%%%%%%%%%
\begin{exo}
Soient $ABCD$ un parallélogramme, et $E$, $F$ et $M$ trois points du plan tels que : $\overrightarrow{CE}=\frac{1}{3}\overrightarrow{CD}$, $\overrightarrow{CF}=\frac{2}{3}\overrightarrow{CD}$ et $\overrightarrow{CM}=\frac{1}{4}\overrightarrow{CA}$.
\begin{enumerate}
\item Construire une figure convenable.
\item Montrer que : $2\overrightarrow{CM}=\overrightarrow{MB}+\overrightarrow{MD}$.
\item Montrer que : $\overrightarrow{CF}=2\overrightarrow{CE}$. Que déduisez-vous ?
\item Montrer que : $\overrightarrow{BE}=\frac{1}{3}\overrightarrow{CD}-\overrightarrow{CB}$ et $\overrightarrow{BM}=\frac{1}{4}\overrightarrow{CD}-\frac{3}{4}\overrightarrow{CB}$.
\item Déduire que les points $B$, $E$ et $M$ sont alignés.
\end{enumerate}
\end{exo}
%%%%%%%%%%%%%%%%%%%
\begin{exo}
Soit $ABC$ un triangle, et $E$ un point tel que $\overrightarrow{AE}=\frac{2}{3}\overrightarrow{AB}$.\\
ET Soit $F$ le projeté du point $E$ sur la droite $(AC)$ parallèlement à la droite $(BC)$.\\
\begin{enumerate}
\item Construire une figure convenable.\\
\item Mntrer que: $\overrightarrow{AF}=\frac{2}{3}\overrightarrow{AC}$.\\
\item Déduire que: $\overrightarrow{EF}=\frac{2}{3}\overrightarrow{BC}$.
\end{enumerate}
\end{exo}
\begin{tcolorbox}
\centering NB : Ce travail est `a rendre pour le 19 décembre 2023
\end{tcolorbox}
\end{document}
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Frequently Asked Questions
What chapters or courses does this exam cover?
This exam covers: Arithmétiques dans IN, الحسابيات في مجموعة الاعداد الصحيحة الطبيعية نسخة 2, الحسابيات في مجموعة الاعداد الصحيحة الطبيعية, الحساب المتجهي, Calcul vectoriel dans le plan, الإسقاط في المستوى نسخة 2, الإسقاط في المستوى, Projection. It is designed to test understanding of these topics.
How many questions are in this exam?
The exam contains approximately 12 questions.
Is this exam aligned with the official curriculum?
Yes, it follows the tronc-commun-sciences maths guidelines.
What topics are covered in this course?
The course "Arithmétiques dans IN" covers key concepts of maths for tronc-commun-sciences. Designed to help students master the curriculum.
Is this course suitable for beginners?
Yes, the material is structured to be accessible while providing depth for advanced learners.
Are there exercises or practice problems?
This resource includes 4 exercise(s) to reinforce learning.
Does this course include solutions?
Solutions are available separately.