2014-09-02 09:20:09 +00:00
|
|
|
\documentclass[a4paper,10pt]{/media/documents/Cours/Prof/Enseignements/Archive/2013-2014/tools/style/classDS}
|
|
|
|
\usepackage{/media/documents/Cours/Prof/Enseignements/Archive/2013-2014/2013_2014}
|
2014-08-29 12:33:04 +00:00
|
|
|
|
|
|
|
% Title Page
|
|
|
|
\titre{Calcul littéral et statistiques}
|
|
|
|
% \quatreC \quatreD \troisB \troisPro
|
|
|
|
\classe{\troisB}
|
|
|
|
\date{26 septemble 2013}
|
|
|
|
% DS DSCorr DM DMCorr Corr
|
|
|
|
\typedoc{DS}
|
|
|
|
\duree{1 heure}
|
2014-09-03 17:30:09 +00:00
|
|
|
\sujet{\Var{infos.Nom}}
|
2014-08-29 12:33:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
\begin{document}
|
|
|
|
\maketitle
|
|
|
|
|
|
|
|
\Calc
|
|
|
|
Le barème est donné à titre indicatif, il pourra être modifié.
|
|
|
|
|
|
|
|
\begin{Exo}[4.5]
|
2015-01-06 08:22:52 +00:00
|
|
|
\Block{set A = Expression.random("{a} / 2 + 2")}
|
|
|
|
\Block{set P = Polynom.random(["{b}","{a}"])}
|
|
|
|
\Block{set Q = Polynom.random(["{b+2}","{a}"])}
|
|
|
|
\Block{set R = P('x')*Q('x') }
|
2014-08-29 12:33:04 +00:00
|
|
|
Développer et réduire les expressions suivantes:
|
2015-01-06 08:22:52 +00:00
|
|
|
\begin{eqnarray*}
|
|
|
|
A &=& \Var{ A } \\
|
|
|
|
P(x) &=& \Var{ P } \\
|
|
|
|
Q(x) &=& \Var{ Q }\\
|
|
|
|
R(x) &=& \Var{R}
|
|
|
|
\end{eqnarray*}
|
2014-09-02 09:20:09 +00:00
|
|
|
|
|
|
|
Solutions:
|
|
|
|
\Var{A.simplify() | calculus}
|
2015-01-06 08:22:52 +00:00
|
|
|
\Var{P(2).simplify() | calculus(name = "P(2)")}
|
|
|
|
\Var{Q(2).simplify() | calculus(name = "Q(2)")}
|
|
|
|
\Var{(P+Q) | calculus(name = "P(x) + Q(X)")}
|
|
|
|
\Var{(P('x')+Q('x')).simplify() | calculus(name = "P(x) + Q(X)")}
|
|
|
|
\Var{R.simplify() | calculus(name = "R(x)")}
|
2014-11-21 16:20:04 +00:00
|
|
|
|
2014-08-29 12:33:04 +00:00
|
|
|
\end{Exo}
|
|
|
|
|
2015-01-06 08:22:52 +00:00
|
|
|
\begin{Exo}
|
|
|
|
\Block{set P = Polynom.random(["{a}", "{b}", "{c}"])}
|
|
|
|
Résoudre l'équation suivante
|
|
|
|
\begin{eqnarray*}
|
|
|
|
\Var{P} & = & 0
|
|
|
|
\end{eqnarray*}
|
|
|
|
|
|
|
|
Solution:
|
|
|
|
|
|
|
|
On commence par calculer le discriminant
|
|
|
|
\begin{eqnarray*}
|
|
|
|
\Delta & = & b^2-4ac
|
|
|
|
\end{eqnarray*}
|
|
|
|
\Block{set Delta = Expression("{b}^2 - 4*{a}*{c}".format(a = P._coef[2], b = P._coef[1], c = P._coef[0]))}
|
|
|
|
\Var{Delta.simplify()|calculus(name="\\Delta")}
|
|
|
|
\Block{set Delta = Delta.simplified()}
|
|
|
|
Alors $\Delta = \Var{Delta}$
|
|
|
|
|
|
|
|
|
|
|
|
\end{Exo}
|
|
|
|
|
2014-08-29 12:33:04 +00:00
|
|
|
|
|
|
|
\end{document}
|
|
|
|
|
|
|
|
%%% Local Variables:
|
|
|
|
%%% mode: latex
|
|
|
|
%%% TeX-master: "master"
|
|
|
|
%%% End:
|
|
|
|
|
2014-11-21 16:20:04 +00:00
|
|
|
|