\documentclass[11pt,a4paper,french]{article}

%\usepackage{fontspec}
%\setmainfont{Times New Roman}

\usepackage[utf8]{inputenc}
\usepackage{fourier}

\usepackage[margin=2cm]{geometry}
  \usepackage{xcolor}
  \usepackage{graphicx}
  \usepackage{tkz-tab}
  
  \usepackage[output-decimal-marker={,}]{siunitx}

  \usepackage{babel}
 
  \usepackage[%
              unicode,
              pdftitle={Tableaux de signes},%
              pdfauthor={O. Péault},%
              colorlinks,%
              urlcolor=darkgray%
              ]{hyperref}

\definecolor{LFBcoultable1}{rgb}{0.8,0.8,0.8}
 

\pagestyle{empty}


\begin{document}
 \begin{Form}
 
 \TextField[name=exo1,width=10em,borderwidth=0,bordercolor=0 0 0]{Exercice }
 
 \bigskip
\begin{center}
\begin{tikzpicture}
\tikzset{t style/.style = dashed}
\tkzTabInit[color,
            colorC=LFBcoultable1,
            colorV=LFBcoultable1,
            espcl=2.5,
            lgt=2,
            deltacl=0.5]
{$x$ /0.75,
Signe de \\
{\TextField[name=f11,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25,
Signe de \\
{\TextField[name=f12,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25,
Signe de \\
{\TextField[name=f13,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25,
Signe de \\
{\TextField[name=f14,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25
}
{$-\infty$,{\TextField[name=val11,width=3em,borderwidth=0,bordercolor=1 1 1,align=1,charsize=12pt]{}},%
           {\TextField[name=val12,width=3em,borderwidth=0,bordercolor=1 1 1,align=1,charsize=12pt]{}},%
           {\TextField[name=val13,width=3em,borderwidth=0,bordercolor=1 1 1,align=1,charsize=12pt]{}},%
           $+\infty$}
\tkzTabLine{,{\TextField[name=s11,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z11,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s12,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z12,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s13,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
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           {\TextField[name=s110,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
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           }%
\tkzTabLine{,%
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           {\TextField[name=z16,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s19,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},
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           {\TextField[name=s112,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
\tkzTabLine{,%
           {\TextField[name=s113,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},
           {\TextField[name=z110,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},%
           {\TextField[name=s114,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z111,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s115,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},
           {\TextField[name=z112,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s116,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
\end{tikzpicture}
\end{center}
 \TextField[name=rep1,width=15em,borderwidth=1,bordercolor=0 0 0]{Réponse : }


\vspace{3cm}

 \TextField[name=exo2,width=10em,borderwidth=0,bordercolor=0 0 0]{Exercice }
 
 \bigskip
\begin{center}
\begin{tikzpicture}
\tikzset{t style/.style = dashed}
\tkzTabInit[color,
            colorC=LFBcoultable1,
            colorV=LFBcoultable1,
            espcl=2.5,
            lgt=2,
            deltacl=0.5]
{$x$ /0.75,
Signe de \\
{\TextField[name=f21,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25,
Signe de \\
{\TextField[name=f22,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25,
Signe de \\
{\TextField[name=f23,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25,
Signe de \\
{\TextField[name=f24,width=5em,borderwidth=0,bordercolor=1 1 1, align=1, backgroundcolor=0.8 0.8 0.8]{}} /1.25
}
{$-\infty$,{\TextField[name=val21,width=3em,borderwidth=0,bordercolor=1 1 1,align=1,charsize=12pt]{}},%
           {\TextField[name=val22,width=3em,borderwidth=0,bordercolor=1 1 1,align=1,charsize=12pt]{}},%
           {\TextField[name=val23,width=3em,borderwidth=0,bordercolor=1 1 1,align=1,charsize=12pt]{}},%
           $+\infty$}
\tkzTabLine{,{\TextField[name=s21,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z21,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s22,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z22,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s23,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z27,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
           {\TextField[name=s210,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
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           {\TextField[name=s25,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           {\TextField[name=z24,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},
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           {\TextField[name=s211,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
\tkzTabLine{,%
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           {\TextField[name=z25,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},%
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           {\TextField[name=s212,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
\tkzTabLine{,%
           {\TextField[name=s213,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},
           {\TextField[name=z210,width=0.6cm,bordersep=0pt,height=1.1cm,charsize=0pt,borderwidth=0,bordercolor=1 1 1,default=|,align=1]{}},%
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           {\TextField[name=s216,width=2em,borderwidth=0,charsize=30pt,height=1cm,bordercolor=1 1 1,align=1]{}},%
           }%
\end{tikzpicture}
\end{center}

 \TextField[name=rep2,width=15em,borderwidth=1,bordercolor=0 0 0]{Réponse : }


  \end{Form}

\end{document}
