Control 01 S01, Continuité et Dérivation
📅 November 13, 2025 | 👁️ Views: 767 | 📝 3 exercises | ❓ 18 questions
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This PDF covers maths exam for 2-bac-science students. It includes 3 exercises and 18 questions. Designed to help you master the topic efficiently.
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% Exercise 2
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Soit \(f\) la fonction numérique définie sur \([0, +\infty[\) et \((C)\) sa courbe représentative dans un repère orthonormé (voir la figure).
\begin{tightenum}[label=\arabic*.]
\item Déterminer \(f(0)\) et
~$ \lim_{x \to +\infty} f(x) $~ \hfill (1pt)
\item Montrer que l’équation \(f(x) = 0\) admet une \\ solution unique \(\alpha\) tel que :
~$ 1 < \alpha < 4 $~ \hfill (1pt)
\item Déterminer \(f'(1)\) et
~$ \lim_{\substack{x \to 0 \\ x > 0}} \frac{f(x) - f(0)}{x - 0} $~ \hfill (1pt)
\item Montrer que \(g\) la restriction de \(f\) sur \(I = [0, 1]\) admet une \\fonction réciproque définie sur un intervalle \(J\) à Déterminer. \hfill (0.5pt)
\item Dresser le tableau de variations de la fonction \(g^{-1}\) \hfill (0.5pt)
\item Construire dans le même repère la courbe de la fonction \((C_{g^{-1}})\). \hfill (0.5pt)
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% Exercise 3
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I. Soit \(f\) la fonction numérique définie sur \(\mathbb{R}\) par :
~$
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f(x) = \frac{4x}{x^2 + 1} & ; x \geq 1 \\
f(x) = x^3 + 2x - 1 & ; x < 1
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$~
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\item Montrer que la fonction \(f\) est continue en 1. \hfill (1pt)
\item Étudier la continuité de la fonction \(f\) sur \(\mathbb{R}\). \hfill (1pt)
\item Étudier la dérivabilité de \(f\) en 1 puis interpréter graphiquement les résultats obtenus. \hfill (2pt)
\item Montrer que
~$
\begin{cases}
f'(x) = \frac{4(1 - x^2)}{(x^2 + 1)^2} & ; x > 1 \\
f'(x) = 3x^2 + 2 & ; x < 1
\end{cases}
$~ \hfill (2pt)
\item Montrer que la fonction \(f\) est strictement décroissante sur l’intervalle \([1, +\infty[\). \hfill (1pt)
\item Dresser le tableau de variations de la fonction \(f\) sur \(\mathbb{R}\). \hfill (1pt)
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II. Soit \(g\) la fonction définie sur l’intervalle \(I = [1, +\infty[\) par :
~$ g(x) = \frac{1}{3}f(x) $
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\item Montrer que \(g^{-1}\) est dérivable en \(\frac{2}{3}\) et donner
~$ \left(g^{-1}\right)'\left(\frac{2}{3}\right) \quad (\text{Calculer } g(3)) $~ \hfill (1pt)
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\vskip 2pt \hrule height 2pt \vskip 2pt \RL{\arabicfont ﴿إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّـٰلِحَـٰتِ أُو۟لَـٰٓئِكَ هُمْ خَيْرُ ٱلْبَرِيَّةِ﴾ (البينة 7) }
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Frequently Asked Questions
What chapters or courses does this exam cover?
This exam covers: اتصال دالة عددية, اشتقاق دالة عددية و دراسة الدوال. 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 2-bac-science maths guidelines.
What topics are covered in this course?
The course "Continuité d'une Fonction Numérique" covers key concepts of maths for 2-bac-science. 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 3 exercise(s) to reinforce learning.
Does this course include solutions?
Solutions are available separately.