Devoir 1 S01
📅 October 27, 2025 | 👁️ Views: 229 | ❓ 18 questions
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This PDF covers maths exam for tronc-commun-sciences students. It includes 18 questions. Designed to help you master the topic efficiently.
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Lycée : S.I.B.S
&
\textbf{\Large Devoir surveillé 1}
&
Niveau: TCSF1
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Année scolaire: 2023/2024
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Durée: 2H
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Pr: A.HAMOUCH
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\begin{exe}[0][(12 Points)]
A- Soit $n$ un entier naturel. Tel que $x=2n^{2}+6n+4$ et $y=n^{2}+n+4$.
\begin{enumerate}
\item Montrer que $x$ et $y$ sont deux nombres pairs.\hfill 3pts
\item Montrer que $x y^{2}$ est un multiple du nombre 4.\hfill 1.5pt
\end{enumerate}
B- On considère les deux nombres $a=630$ et $b=1800$.
\begin{enumerate}
\item Décomposer en produit de facteurs premiers $a$ et $b$.\hfill 2pts
\item
\begin{enumerate}
\item En déduire le PPCM $(a,b)$ et le PGCD$(a,b)$.\hfill 1pt
\item Simplifier les deux nombres $ \frac{a}{b}$ et $\sqrt{a \times b}$.\hfill 2pts
\item Déterminer le plus petit entier naturel $k$ tel que $k \times a$ soit un carré parfait.\hfill 1pt
\item Avec l’Algorithme d’Euclide, déterminer PGCD(a,b).\hfill 1.5pt
\end{enumerate}
\end{enumerate}
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%%%%%%%%%%%%%%%%%
\begin{exe}[0][(5.5 Points)]
Soit $ABC$ un triangle et soient $M$, $N$, et $Q$ trois points du plan tels que :
\[
\overrightarrow{A M}=\frac{3}{2} \overrightarrow{A B} ; \overrightarrow{A N}=3 \overrightarrow{A C} \text{ et } \overrightarrow{C Q}=2 \overrightarrow{C B}
\]
\begin{enumerate}
\item Construire une figure convenable.\hfill 1pt
\item Montrer que $ \overrightarrow{A Q}=2 \overrightarrow{A B}-\overrightarrow{A C} $\hfill 0.5pt
\item Montrer que $ \overrightarrow{M N}=\frac{-3}{2} \overrightarrow{A B}+3 \overrightarrow{A C} $ et
$ \overrightarrow{Q N}=-2 \overrightarrow{A B}+4 \overrightarrow{A C} $\hfill 1.5pts
\item
\begin{enumerate}
\item Montrer que les vecteurs $ \overrightarrow{M N} $ et $ \overrightarrow{Q N} $ sont colinéaires.\hfill 1pt
\item Déduire que les points $M$, $N$ et $Q$ sont alignés.\hfill 0.5pt
\end{enumerate}
\item Soit $J$ le milieu du segment $[A B]$. Montrer que $ \overrightarrow{M N}=-3 \overrightarrow{C J} $,\hfill 1pt
\\ Que peut-on déduire a propos les deux droites (MN) et (CJ).
\end{enumerate}
\end{exe}
\begin{exe}[0][(2.5 Points)]
Soit ABCD un parallélogramme et \( E \) un point tel que \( \overrightarrow{AE}=\frac{3}{4} \overrightarrow{AC} \).\\
\( F \) est le projeté du point \( E \) sur (BC) parallèlement à \( (AB) \).
\begin{enumerate}
\item Construire une figure.\hfill 0.5pt
\item Montrer que \( \overrightarrow{BF}=\frac{3}{4} \overrightarrow{BC} \).\hfill 1pt
\item Montrer que \( \overrightarrow{CF}=\frac{1}{4} \overrightarrow{CB} \).\hfill 1pt
\end{enumerate}
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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 18 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 "Calcul vectoriel dans le plan" 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?
Exercises are included to help you practice.
Does this course include solutions?
Solutions are available separately.