serie exercices: Généralités sur les Fonctions

📅 April 19, 2024   |   👁️ Views: 432   |   📝 6 exercises   |   ❓ 8 questions


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maths Exercise for tronc-commun-sciences PDF preview

\documentclass[12pt,a4paper]{article}
\usepackage[left=1.00cm, right=1.00cm, top=0.50cm, bottom=0.50cm]{geometry}
\usepackage{tabularx}
\usepackage{booktabs}% better tables
\usepackage{ragged2e}%better Centering
\usepackage{amsmath,amsfonts,amssymb}
\usepackage{mathrsfs}%rsfs font , \mathscr{}
\usepackage{enumitem}
\usepackage{multirow}
\usepackage{xcolor}
%\usepackage{setspace}

%\usepackage{fancyhdr}
\usepackage[ddmmyyyy]{datetime}

\usepackage{tikz, pgfplots}
\pgfplotsset{compat=1.18}
\usetikzlibrary{shapes}

%\usepackage{draftwatermark}
\usepackage{hyperref}
\hypersetup{
    colorlinks=true,
    linkcolor=blue
}
\definecolor{cc}{rgb}{236,0,140}
\newcommand{\mylink}{\href{https://mosaid.xyz/cc}{www.mosaid.xyz}}
%\SetWatermarkText{\mylink}
%\SetWatermarkText{\color{cc!10!white}{www.mosaid.xyz}}
%\SetWatermarkLightness{0.95}
%\SetWatermarkScale{0.8}

% Define colors
\definecolor{lightpurple}{RGB}{221,160,221}
\definecolor{darkpurple}{RGB}{148,0,211}
\definecolor{lightblue}{RGB}{173,216,230}

\newcolumntype{C}{>{\Centering\arraybackslash}X}

%\setstretch{1.10}
\everymath{\displaystyle}




\newcommand{\mylabel}[2][lightblue]{%
    \begin{tikzpicture}[baseline=(label.base)]
        \node[draw=#1, fill=#1, text=black, inner sep=2pt,
    rounded corners=2pt, font=\tiny, anchor=north] at (0,1) (label) {#2}; % Adjust the y-coordinate here
        \draw[->, thick, #1] (label) -- +(10pt,0);
    \end{tikzpicture}%
}

% Apply settings to the enumerate environment
\setlist[enumerate]{ % Apply settings to the enumerate environment
    label={\mylabel{\arabic*}}, % Define the format of the label for each item
    topsep=0pt, % Vertical space before and after the entire list
    partopsep=0pt, % Vertical space before and after the list, but not between items
    parsep=3pt, % Vertical space between paragraphs within an item
    itemsep=3pt, % Vertical space between items
    after=\vspace*{-\baselineskip}, % Additional vertical space after the list
    before=\vspace*{-0.5\baselineskip}, % Additional vertical space before the list
    leftmargin=10pt, % Left margin of the entire list
    rightmargin=0pt, % Right margin of the entire list
    itemindent=0pt, % Indentation of the item label from the left margin
    labelsep=-10pt, % Distance between the label and the text of the item
    align=left % Alignment of the labels (left, right, or center)
}


\begin{document}
\thispagestyle{empty}
\noindent\begin{tabularx}{\textwidth}{@{} lCr @{}}
    Lycee Taghzirt\textbf{/}Prof MOSAID &
    2023-2024\textbf{/Série Généralités sur les fonctions}&
  TCS-F\textbf{/}...h\\
    \bottomrule
\end{tabularx}
\mylink \hfill \mylink\\
\textbf{\underline{Exercice 1:}}\\
\noindent
\begin{tabular}{@{}p{0.01\textwidth}|p{0.24\textwidth}p{0.18\textwidth}p{0.23\textwidth}p{0.33\textwidth}}
  &\multicolumn{3}{l}{Déterminer les domaines de définitions des fonctions suivantes}\\
  &\begin{enumerate}
      \item $f:x\mapsto 3x^2-2x+1$
      \item $g:x\mapsto 3x^2-2\sqrt x+1$
      \item $h:x\mapsto \sqrt{3x^2-2x+1}$
   \end{enumerate}
   &\begin{enumerate}[start=4]
      \item $l:x\mapsto \sqrt{\frac{3x-1}{x^2-9}}$
      \item $m:x\mapsto \frac{3x-1}{2x+1}$
   \end{enumerate}
   &\begin{enumerate}[start=6]
     \item $u:x\mapsto \frac{1}{3x^2-2x+1}$
      \item $v:x\mapsto \sqrt{2x+1}-\frac{1}{x}$
   \end{enumerate}
   &\begin{enumerate}[start=8]
      \item
       $
       k:x\mapsto\newline
      \begin{cases}
        2x-\sqrt x &\text{si } 0 \le x <4\\
        2x+1       &\text{si } x \le 0
      \end{cases}
      $
   \end{enumerate}
\end{tabular}
\textbf{\underline{Exercice 2:}} \hfill \mylink\\
\noindent
\begin{tabular}{@{}p{0.01\textwidth}|p{0.44\textwidth}p{0.58\textwidth}}
  & Soit $f$ la fonction définie par $f(x)=\frac{2x}{x^2+1}$ \\
  & \mylabel[green]{1} Déterminer le domaine de définition $D_f$
  & \mylabel[green]{3} Etudier la monotonie de $f$ sur $[0,1]$ et $[1,+\infty[$\\
  & \mylabel[green]{2} Etudier la parité de $f$ sur $D_f$
  & \mylabel[green]{4} Etablir le tableau des variations de $f$
\end{tabular}
\textbf{\underline{Exercice 3:}} \hfill \mylink\\
\noindent
\begin{tabular}{@{}p{0.01\textwidth}|p{0.44\textwidth}p{0.58\textwidth}}
  & Soit $f$ la fonction définie par $f(x)=\frac{-|x|}{x^2-1}$ \\
  & \mylabel[green]{1} Déterminer le domaine de définition $D_f$
  & \mylabel[green]{3} Etudier la monotonie de $f$ sur $[0,1[$ et $]1,+\infty[$\\
  & \mylabel[green]{2} Etudier la parité de $f$ sur $D_f$
  & \mylabel[green]{4} Etablir le tableau des variations de $f$
\end{tabular}
\textbf{\underline{Exercice 4:}}\\
  Soient les fonctions $f$ et $g$ définies par leurs courbes représentatives suivantes:\\
\noindent
\begin{minipage}[t]{0.43\textwidth}
  \hspace*{0.5cm}
  \begin{tikzpicture}[scale=1.00,baseline=(current bounding box.north)]
    \begin{axis}[axis lines=center,
        xlabel={$x$},
        ylabel={$y$},
    ytick={-1,0.5,1,1.5,2,3},
    xtick={-1.5,1,2.2,3},
    extra x ticks={-3,-2,0,1.75},
    extra x tick style={
        xticklabel style={xshift=-5pt, yshift=12pt},
        tick label style={font=\tiny},
        xticklabel pos=upper
    },
    xmin=-4.5,xmax=5,
        ymin=-2,ymax=4,
        unbounded coords=jump,
    samples=200,
    xticklabel style={font=\tiny},
    yticklabel style={font=\tiny},
    ]
    \coordinate (A) at (-3,-1);
    \coordinate (B) at (-1.5,2);
    \coordinate (C) at (-2,0);
    \coordinate (D) at (0,3);
    \coordinate (E) at (3,0);
    \coordinate (F) at (2.2,3);
    \coordinate (G) at (1,0.5);
    \coordinate (H) at (1.75,1.5);
    \coordinate (K) at (1.92,2);
    \draw[blue, looseness=0.5] (A) to[out=25,in=-110] (C) to[out=55,in=-110] (B) to[out=68,in=180] (D) to[out=0, in=135] (E) -- (3.2,-0.2) node[above right, yshift=-0.5cm] {$C_g$};

    \draw[red, looseness=0.5] (A) to[out=80,in=180] (B) to[out=0,in=180] (G) to[out=0,in=-110] (F) -- (2.3,3.2) node[above left] {$C_f$};

    \foreach \point in {A,B,C,D,E,F,G,H,K} {
    \edef\temp{\noexpand\fill (\point) circle (1pt);}
    \temp
  }
      \draw[blue, dashed] (A) -- (0,-1);
      \draw[blue, dashed] (B) -- (K);
      \draw[green, dashed] (D) -- (F);
      \draw[blue, dashed] (0,0.5) -- (G);

      \draw[blue, dashed] (A) -- (-3,0);
      \draw[blue, dashed] (1,0) -- (G);
      \draw[blue, dashed] (1.75,0) -- (H)--(0,1.5);
      \draw[red, dashed] (B) -- (-1.5,0);
      \draw[red, dashed] (2.2,0) -- (F);
     \end{axis}
\end{tikzpicture}
\end{minipage}
\begin{minipage}[t]{0.57\textwidth}
\vspace*{1cm}
\mylabel[green]{1}Déterminer graphiquement :\\
  \hspace*{1cm}$f(2.2)$ , $f(-3)$ , $f(1)$ , $f(0)$ et $g(-2)$ \\
\mylabel[green]{2}Résoudre graphiquement l'équation $f(x)=0$ \\
\mylabel[green]{3}Résoudre graphiquement l'inéquation $f(x)>0$ \\
\mylabel[green]{4}Résoudre graphiquement l'équation $f(x)=g(x)$ \\
\mylabel[green]{5}Résoudre graphiquement l'inéquation $f(x)<g(x)$ \\
\end{minipage}
\textbf{\underline{Exercice 5:}} \hfill \mylink\\
\noindent
\begin{tabular}{@{}p{0.01\textwidth}|p{0.98\textwidth}}
  &Soit $f$ la fonction définie par $f(x)=-2x^2+8|x|-6$ et $C_f$ sa courbe représentative dans un repère orthonormé \\
  & \mylabel[green]{1} Etudier la parité de la fonction $f$ sur $D_f$\\
  & \mylabel[green]{2} Montrer que $f$ prend une valeur maximale au point 2 sur $[0,+\infty[$\\
  & \mylabel[green]{3} Etudier la monotonie de $f$ sur $[0,2]$ et $[2,+\infty[$\\
  & \mylabel[green]{4} Determiner l'intersection de $C_f$ et les axes du repère sur $[0,+\infty[$\\
  & \mylabel[green]{5} Etablir le tableau des variations de $f$\\
  & \mylabel[green]{6} Déterminer, selon les valeurs du paramètre $m$, \textbf{le nombre} des solutions de l'équation
  $f(x)=m$
\end{tabular}
\textbf{\underline{Exercice 6:}} \hfill \mylink\\
\noindent
\begin{tabular}{@{}p{0.01\textwidth}|p{0.98\textwidth}}
  & Soit $f$ la fonction définie par $f(x)=\frac{3x+2}{x-1}$ \\
  & \mylabel[green]{1} Déterminer le domaine de définition $D_f$\\
  & \mylabel[green]{2} Vérifier que $f(x)=3+\frac{5}{x-1}\quad x\in D_f$\\
  & \mylabel[green]{3} Montrer que $f$  est décroissante sur $]-\infty,1[$ et $]1,+\infty[$\\
  & \mylabel[green]{4} Etablir le tableau des variations de $f$\\
  & \mylabel[green]{5} Determiner l'intersection de $C_f$ et les axes du repère \\
\end{tabular}
\\[0.5cm]
\textcolor{white}{.}\hfill \underline{MOSAID le \today}\\
\textcolor{white}{.}\hfill \mylink
\\
\end{document}



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The course "Généralités sur les fonctions" covers key concepts of maths for tronc-commun-sciences. Designed to help students master the curriculum.

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This resource includes 6 exercise(s) to reinforce learning.

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