Import work from year 2014-2015
This commit is contained in:
94
2nd/Geometrie_analytique/Equation_dte/Exo/Create_datas.ipynb
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94
2nd/Geometrie_analytique/Equation_dte/Exo/Create_datas.ipynb
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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 27,
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"metadata": {
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"collapsed": false
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},
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"outputs": [],
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"source": [
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"a = 0.7\n",
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"b = 2\n",
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"longueurs = np.arange(10)\n",
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"ecart = np.random.normal(0,1,10)\n",
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"valeurs = a*longueurs + b + 0.5*ecart"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 28,
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"metadata": {
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"collapsed": false
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},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"array([ 1.74415298, 2.28900387, 2.66515751, 3.22369361, 4.75102876,\n",
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" 5.77744568, 7.01348165, 7.51017164, 7.11560104, 7.90809218])"
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]
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},
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"execution_count": 28,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"valeurs"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 29,
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"metadata": {
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"collapsed": false
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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" (0,1.74) (1,2.29) (2,2.67) (3,3.22) (4,4.75) (5,5.78) (6,7.01) (7,7.51) (8,7.12) (9,7.91) \n"
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]
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}
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],
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"source": [
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"ans = \"\"\n",
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"for (i,a) in enumerate(valeurs):\n",
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" ans += \" ({},{}) \".format(longueurs[i],round(a,2))\n",
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"print(ans)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"collapsed": true
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},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.4.3"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 0
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}
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BIN
2nd/Geometrie_analytique/Equation_dte/Exo/eq_dte.pdf
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BIN
2nd/Geometrie_analytique/Equation_dte/Exo/eq_dte.pdf
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Binary file not shown.
156
2nd/Geometrie_analytique/Equation_dte/Exo/eq_dte.tex
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156
2nd/Geometrie_analytique/Equation_dte/Exo/eq_dte.tex
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\documentclass[a4paper,12pt,landscape, twocolumn]{/media/documents/Cours/Prof/Enseignements/2014-2015/tools/style/classExo}
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\usepackage{/media/documents/Cours/Prof/Enseignements/2014-2015/2014_2015}
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% Title Page
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\titre{Équation de droite - Exercices}
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% \seconde \premiereS \PSTMG \TSTMG
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\classe{\seconde}
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\date{Mai 2015}
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\begin{document}
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\begin{questions}
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\question %Nuage de points et on trace la droite d'ajustement affine
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Voici un tableau indiquant l'évolution du prix, en miliers d'euro, d'un appartement entre 2004 et 2012.
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\hspace{-1cm}
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\begin{tabularx}{1.1\linewidth}{|m{3cm}|*{9}{>{\centering \arraybackslash \small}X|}}\hline
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Année &2004 &2005 &2006 &2007 &2008 &2009 &2010 &2011 &2012\\ \hline
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Rang de l'année : $x_{i}$ &0 &1 &2 &3 &4 &5 &6 &7 &8\\ \hline
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Prix de l'appartement (en milier \euro): $y_{i}$ &\np{2.5} &\np{2.8} &\np{3.0} &\np{3.2} &\np{3.3} &\np{3.3} &\np{3.5} &\np{3.7} &\np{3.8}
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\\ \hline
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\end{tabularx}
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\begin{parts}
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\part Sur le graphique, placer les points correspondant aux pris de l'appartement.
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\part Sur le graphique, tracer la droite d'équation: $d: y = 1,5x + 2,7$
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\part Que peut-on dire sur cette droite?
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\end{parts}
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\begin{center}
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\begin{tikzpicture}[scale=1.3]
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\tkzInit[xmin=0,xmax=9,
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ymin=0,ymax=5,
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xstep=1,ystep=1]
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\tkzAxeX[very thick, poslabel=right,label=]
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\tkzAxeY[very thick, poslabel=above right,label=]
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\tkzDrawX[label={\textit{Année}}, below=-12pt]
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\tkzDrawY[label={\textit{Prix}}, below=-10pt]
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\tkzGrid
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\tkzGrid[sub, subxstep=0.5, subystep=0.5]
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\end{tikzpicture}
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\end{center}
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\pagebreak
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\question %Nuage de points avec la droite d'ajustement affine et on trouve l'équation de la droite
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En TP de physique, Anna et Pierre ont mesuré la longueur d'un ressort en fonction du la masse accrochée au bout. Ils ont ensuite reporté les points sur le graphique ci-dessous et ils ont tracé la droite qui leur semblait être le plus proche de tous les points.
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\begin{center}
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\begin{tikzpicture}
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\tkzInit[xmin=0,xmax=10,
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ymin=0,ymax=9,
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xstep=1,ystep=1]
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\tkzAxeX[very thick, poslabel=below,label=]
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\tkzAxeY[very thick, poslabel=above,label=]
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\tkzDrawX[label={\textit{Masse}}, below=-12pt]
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\tkzDrawY[label={\textit{Longueur}}, below=-10pt]
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\tkzGrid
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\tkzGrid[sub, subxstep=0.5, subystep=0.5]
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\draw[only marks] plot[mark=*] coordinates {(0,1.74) (1,2.29) (2,2.67) (3,3.22) (4,4.75) (5,5.78) (6,7.01) (7,7.51) (8,7.12) (9,7.91)} ;
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\tkzFct[domain=0:10,color=blue, very thick]{0.7*\x+2}
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\end{tikzpicture}
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\end{center}
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\begin{parts}
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\part Déterminer l'équation de la droite.
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\part Que représente $x$ et $y$ dans l'équation de cette droite?
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\part À avec l'équation de la droite, quelle serait la longueur du ressort si l'on attachait une masse de 1,2kg?
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\end{parts}
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\pagebreak
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\question %Une fonction avec quelques tangentes
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Sur le graphique suivant, on a tracé la fonction $f(x) = -0,7x^2 + 2x + 2.3$ et quelques tangentes (vous découvrirez ce que c'est l'année prochaine pour le moment tout ce que vous avez à savoir c'est que se sont des droites!).
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\begin{center}
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\begin{tikzpicture}[xscale=1.5]
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\tkzInit[xmin=-3,xmax=4,ymin=-4,ymax=5]
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\tkzGrid
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\tkzGrid[sub, subxstep=0.5, subystep=0.5]
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\tkzDrawXY
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\tkzClip
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\tkzFct{0.7*(-x*x)+2*x + 2.3}
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\tkzDefPointByFct[draw](2)
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\tkzText[below](tkzPointResult){\Large ${\mathcal{C}}_f$}
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\tkzDrawTangentLine[kr = 3, kl = 3, thick,draw](-1)
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\tkzDrawTangentLine[kr = 3, kl = 5, draw](1)
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\tkzDrawTangentLine[kr = 3, kl = 3, draw](3)
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\tkzRep
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\draw (-2,-3) node[above] {\Large $d_1$};
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\draw (-2,2) node[above] {\Large $d_2$};
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\draw (3.5,1) node[above right] {\Large $d_3$};
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\end{tikzpicture}
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\end{center}
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Calculer l'équation des trois droites $d_1$, $d_2$ et $d_3$.
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\question
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Aujourd'hui, les écrans sont composés de \textbf{pixels}. Ce sont des petits carrés que l'on allume ou éteint pour afficher une image. L'objectif de cette exercice est de savoir quels sont les pixels à allumer pour tracer une droite entre 2 points.
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\begin{center}
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\includegraphics[scale=0.7]{./fig/dte_pixel}
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\end{center}
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\begin{parts}
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\part Quels pixels allumeriez vous pour tracer les droites passants par
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\hfill $A(1;2)$ et $B(7;5)$ \hfill $C(2;5)$ et $D(5;0)$ \hspace{2cm}
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\part Expliquer chaque étapes pour savoir quels pixels allumer.
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\part Écrire un algorithme qui, à partir des coordonnées de 2 points, allume les pixels pour tracer la droite.
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\end{parts}
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\question % 2 trajectoires droites calculer le point d'intersection.
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\begin{center}
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\begin{tikzpicture}[yscale=0.7]
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\tkzInit[xmin=-5,xmax=5,
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ymin=-5,ymax=5,
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xstep=1,ystep=1]
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\tkzAxeX[very thick, poslabel=below,label={$x$}]
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\tkzAxeY[very thick, poslabel=above,label={$y$}]
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\tkzGrid
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\tkzGrid[sub, subxstep=0.5, subystep=0.5]
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\tkzFct[domain=-5:5, very thick]{0.5*\x+2}
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\draw (4,4) node[above] {\Large $d_1$};
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\tkzFct[domain=-5:5, very thick]{0.5*\x-2.5}
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\draw (4,1.5) node[above] {\Large $d_2$};
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\tkzFct[domain=-5:5, very thick]{0.75*\x-1.5}
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\draw (4,-1) node[below] {\Large $d_3$};
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\tkzFct[domain=-5:5, very thick]{-2*\x+3}
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\draw (-1,4) node[left] {\Large $d_4$};
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\end{tikzpicture}
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\end{center}
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\begin{parts}
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\part Déterminer les droites parallèles.
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\part Déterminer les points d'intersection des droites sécantes.
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\end{parts}
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\end{questions}
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\end{document}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: "master"
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%%% End:
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@@ -0,0 +1,2 @@
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set table "eq_dte.tkzfct.table"; set format "%.5f"
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set samples 200.0; plot [x=-5.000000000000000000:5.000000000000000000] (-2*(x*1)+3)/1
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205
2nd/Geometrie_analytique/Equation_dte/Exo/eq_dte.tkzfct.table
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205
2nd/Geometrie_analytique/Equation_dte/Exo/eq_dte.tkzfct.table
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# Curve 0 of 1, 200 points
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# Curve title: "(-2*(x*1)+3)/1"
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# x y type
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-5.00000 13.00000 i
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-4.94975 12.89950 i
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-4.89950 12.79899 i
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-4.84925 12.69849 i
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-4.79899 12.59799 i
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-4.74874 12.49749 i
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-4.69849 12.39698 i
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-4.64824 12.29648 i
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-4.59799 12.19598 i
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-4.54774 12.09548 i
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-4.49749 11.99497 i
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-4.44724 11.89447 i
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-4.39698 11.79397 i
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-4.34673 11.69347 i
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-4.29648 11.59296 i
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-4.24623 11.49246 i
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-4.19598 11.39196 i
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-4.14573 11.29146 i
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-4.09548 11.19095 i
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-4.04523 11.09045 i
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-3.99497 10.98995 i
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-3.94472 10.88945 i
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-3.89447 10.78894 i
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-3.84422 10.68844 i
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-3.79397 10.58794 i
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-3.74372 10.48744 i
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-3.69347 10.38693 i
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-3.64322 10.28643 i
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-3.59296 10.18593 i
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-3.54271 10.08543 i
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-3.49246 9.98492 i
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-3.44221 9.88442 i
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-3.39196 9.78392 i
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-3.34171 9.68342 i
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-3.29146 9.58291 i
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-3.24121 9.48241 i
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-3.19095 9.38191 i
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-3.14070 9.28141 i
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-3.09045 9.18090 i
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-3.04020 9.08040 i
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-2.98995 8.97990 i
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-2.93970 8.87940 i
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-2.88945 8.77889 i
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-2.83920 8.67839 i
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-2.78894 8.57789 i
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-2.73869 8.47739 i
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-2.68844 8.37688 i
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-2.63819 8.27638 i
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-2.58794 8.17588 i
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-2.53769 8.07538 i
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-2.48744 7.97487 i
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-2.43719 7.87437 i
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-2.38693 7.77387 i
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-2.33668 7.67337 i
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-2.28643 7.57286 i
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-2.23618 7.47236 i
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-2.18593 7.37186 i
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-2.13568 7.27136 i
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-2.08543 7.17085 i
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-2.03518 7.07035 i
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-1.98492 6.96985 i
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-1.93467 6.86935 i
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-1.88442 6.76884 i
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-1.83417 6.66834 i
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-1.78392 6.56784 i
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-1.73367 6.46734 i
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-1.68342 6.36683 i
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-1.63317 6.26633 i
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-1.58291 6.16583 i
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-1.53266 6.06533 i
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-1.48241 5.96482 i
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-1.43216 5.86432 i
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-1.38191 5.76382 i
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-1.33166 5.66332 i
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-1.28141 5.56281 i
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-1.23116 5.46231 i
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-1.18090 5.36181 i
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-1.13065 5.26131 i
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-1.08040 5.16080 i
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-1.03015 5.06030 i
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-0.97990 4.95980 i
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-0.92965 4.85930 i
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-0.87940 4.75879 i
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-0.82915 4.65829 i
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-0.77889 4.55779 i
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-0.72864 4.45729 i
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-0.67839 4.35678 i
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-0.62814 4.25628 i
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-0.57789 4.15578 i
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-0.52764 4.05528 i
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-0.47739 3.95477 i
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-0.42714 3.85427 i
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-0.37688 3.75377 i
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-0.32663 3.65327 i
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-0.27638 3.55276 i
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-0.22613 3.45226 i
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-0.17588 3.35176 i
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-0.12563 3.25126 i
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-0.07538 3.15075 i
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-0.02513 3.05025 i
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0.02513 2.94975 i
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0.07538 2.84925 i
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0.12563 2.74874 i
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0.17588 2.64824 i
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0.22613 2.54774 i
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0.27638 2.44724 i
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0.32663 2.34673 i
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||||
0.37688 2.24623 i
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0.42714 2.14573 i
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0.47739 2.04523 i
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0.52764 1.94472 i
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0.57789 1.84422 i
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0.62814 1.74372 i
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0.67839 1.64322 i
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0.72864 1.54271 i
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0.77889 1.44221 i
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0.82915 1.34171 i
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0.87940 1.24121 i
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0.92965 1.14070 i
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0.97990 1.04020 i
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1.03015 0.93970 i
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1.08040 0.83920 i
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1.13065 0.73869 i
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1.18090 0.63819 i
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1.23116 0.53769 i
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1.28141 0.43719 i
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1.33166 0.33668 i
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1.38191 0.23618 i
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1.43216 0.13568 i
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1.48241 0.03518 i
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1.53266 -0.06533 i
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1.58291 -0.16583 i
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1.63317 -0.26633 i
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1.68342 -0.36683 i
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1.73367 -0.46734 i
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1.78392 -0.56784 i
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1.83417 -0.66834 i
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1.88442 -0.76884 i
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1.93467 -0.86935 i
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1.98492 -0.96985 i
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2.03518 -1.07035 i
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2.08543 -1.17085 i
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2.13568 -1.27136 i
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2.18593 -1.37186 i
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2.23618 -1.47236 i
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2.28643 -1.57286 i
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2.33668 -1.67337 i
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2.38693 -1.77387 i
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2.43719 -1.87437 i
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2.48744 -1.97487 i
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2.53769 -2.07538 i
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2.58794 -2.17588 i
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2.63819 -2.27638 i
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2.68844 -2.37688 i
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2.73869 -2.47739 i
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2.78894 -2.57789 i
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2.83920 -2.67839 i
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2.88945 -2.77889 i
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2.93970 -2.87940 i
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||||
2.98995 -2.97990 i
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3.04020 -3.08040 i
|
||||
3.09045 -3.18090 i
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||||
3.14070 -3.28141 i
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||||
3.19095 -3.38191 i
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||||
3.24121 -3.48241 i
|
||||
3.29146 -3.58291 i
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||||
3.34171 -3.68342 i
|
||||
3.39196 -3.78392 i
|
||||
3.44221 -3.88442 i
|
||||
3.49246 -3.98492 i
|
||||
3.54271 -4.08543 i
|
||||
3.59296 -4.18593 i
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||||
3.64322 -4.28643 i
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3.69347 -4.38693 i
|
||||
3.74372 -4.48744 i
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||||
3.79397 -4.58794 i
|
||||
3.84422 -4.68844 i
|
||||
3.89447 -4.78894 i
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3.94472 -4.88945 i
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3.99497 -4.98995 i
|
||||
4.04523 -5.09045 i
|
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4.09548 -5.19095 i
|
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4.14573 -5.29146 i
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4.19598 -5.39196 i
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4.24623 -5.49246 i
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4.29648 -5.59296 i
|
||||
4.34673 -5.69347 i
|
||||
4.39698 -5.79397 i
|
||||
4.44724 -5.89447 i
|
||||
4.49749 -5.99497 i
|
||||
4.54774 -6.09548 i
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||||
4.59799 -6.19598 i
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4.64824 -6.29648 i
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4.69849 -6.39698 i
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4.74874 -6.49749 i
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4.79899 -6.59799 i
|
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4.84925 -6.69849 i
|
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4.89950 -6.79899 i
|
||||
4.94975 -6.89950 i
|
||||
5.00000 -7.00000 i
|
||||
|
||||
BIN
2nd/Geometrie_analytique/Equation_dte/Exo/fig/dte_pixel.png
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2nd/Geometrie_analytique/Equation_dte/Exo/fig/dte_pixel.png
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31
2nd/Geometrie_analytique/Equation_dte/Exo/index.rst
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31
2nd/Geometrie_analytique/Equation_dte/Exo/index.rst
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|
||||
Notes sur Exo sur les équations de droites pour les 2nd
|
||||
#######################################################
|
||||
|
||||
:date: 2015-07-01
|
||||
:modified: 2015-07-01
|
||||
:tags: Geometrie_analytique,Exo
|
||||
:category: 2nd
|
||||
:authors: Benjamin Bertrand
|
||||
:summary: Pas de résumé, note créée automatiquement parce que je ne l'avais pas bien fait...
|
||||
|
||||
|
||||
|
||||
`Lien vers Create_datas.ipynb <Create_datas.ipynb>`_
|
||||
|
||||
`Lien vers eq_dte.tex <eq_dte.tex>`_
|
||||
|
||||
`Lien vers eq_dte.pdf <eq_dte.pdf>`_
|
||||
|
||||
`Lien vers fig/dte_pixel.png <fig/dte_pixel.png>`_
|
||||
|
||||
|
||||
Erreurs
|
||||
-------
|
||||
|
||||
* Equation de la droite pourri sur l'exo 1
|
||||
* exo 2 fautes de frappe
|
||||
|
||||
Trucs sympas
|
||||
------------
|
||||
|
||||
* Jeu où il faut retrouver des équations de droites et collecter un maximum de diamants `Diamon Collector: http://nrich.maths.org/content/id/5725/DiamondLinesNew.swf`
|
||||
Reference in New Issue
Block a user