devoir 2 S01 : suites et produit scalaire - v4

📅 February 08, 2024   |   👁️ Views: 320



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\begin{center}
    \begin{tabularx}{\linewidth}{@{}|Y|Y|Y|@{}}
        \hline
        Lycée Taghzirte& Control N° 3 : 1BACSF2-3 & Année scolaire: 2022-2023\\
        Prof: MOSAID Radouan& Semestre 1& Durée: 2h\\
        \hline
    \end{tabularx}
    \begin{tabularx}{\linewidth}{@{}|c|X|@{}}
        \hline
        & \underline{\textbf{Exercice 1:}(10pts)} \\
        & I - Soit la suite numérique $(U_n)$ définie par
        $
        \begin{cases}
        U_1 = 1 \\
        U_{n+1} = \frac{1}{2}U_{n} \hspace*{0.5cm} \forall n \in \mathbb{N}
        \end{cases}
        $ \\
        1 & \hspace*{0.5cm}1 -  Calculer  $U_2$, $U_3$\\
        1.5 & \hspace*{0.5cm}2 -  Montrer que  $\forall n \in \mathbb{N} \hspace*{0.3cm} U_n <2$\\
        1.5 & \hspace*{0.5cm}3 -  Montrer que  $(U_n)$ est croissante\\
        & II - Soient les suites numériques $(u_n)$ et $(v_n)$ définies par \\
        & \hspace*{1cm} $ \forall n \in \mathbb{N} \hspace{0.3cm}
        \begin{cases}
            u_0 = -2 \\
            u_{n+1} = \frac{2}{3}u_n-1 \hspace*{0.5cm}
            \end{cases} \hspace*{0.6cm} v_n=u_n+3
        $ \\
        2 & \hspace*{0.5cm}1 -  Montrer que $v_n$ est géometrique\\
        1 & \hspace*{0.5cm}2 -  Ecrire $v_n$ en fonction de n \\
        1 & \hspace*{0.5cm}3 -  Ecrire $u_n$ en fonction de n \\
        1 & \hspace*{0.5cm}4 -  Calculer la somme $S=v_1+v_2+\dots+v_7$\\
        1 & \hspace*{0.5cm}4 -  En deduir la somme $S=u_1+u_2+\dots+u_7$\\
        & \underline{\textbf{Exercice 2:}(10pts)} \\
        & Le plan est rapporté à un repère orthonormé $(O,\overrightarrow{i},\overrightarrow{j})$. Soient les points $A(1,2), B(0,5)$  et le cercle $\mathscr{(C)}: x^2+y^2-2x-3=0$ et la droite $(D): x-2y+3=0$ \\
        2 & \hspace*{0.5cm}1 - Determiner le centre et le rayon du cercle $\mathscr{(C)}$\\
        1 & \hspace*{0.5cm}2 - Verifier que $A\in\mathscr{(C)}$\\
        2 & \hspace*{0.5cm}3 - Determiner une équation cartésienne de la droite $(\Delta)$  passant par B et $\overrightarrow{n}(3,4)$ est normal\\
        1 & \hspace*{0.5cm}4 - Montrer que $(D) \parallel (\Delta)$\\
        2 & \hspace*{0.5cm}5 - Verifier que $(D)$ coupe $\mathscr{(C)}$ et determiner leurs intersections\\
        2 & \hspace*{0.5cm}3 - Determiner une équation cartésienne de la droite $(D)$ tangente au cercle $\mathscr{(C)}$ au point A\\
        \hline
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Frequently Asked Questions

What chapters or courses does this exam cover?
This exam covers: الجداء السلمي وتطبيقاته, Les Suites numériques v4, المتتاليات العددية, Les Suites numériques v3, Les Suites numériques v2, Les Suites numériques. It is designed to test understanding of these topics.

How many questions are in this exam?
The exam contains approximately several questions.

Is this exam aligned with the official curriculum?
Yes, it follows the 1-bac-science maths guidelines.

What topics are covered in this course?
The course "Produit Scalaire" covers key concepts of maths for 1-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?
Exercises are included to help you practice.

Does this course include solutions?
Solutions are available separately.


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