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diff --git a/obsolete/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-07-6-0.tex b/obsolete/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-07-6-0.tex
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+\input{preamble-standalone.ltx}
+\begin{document}
+
+% Ex. No. 22 (Section 7.6 : Demi-tangentes )
+
+ \begin{tikzpicture}[scale=2.75]
+ \tkzInit[xmin=-2,xmax=3,ymax=3]
+ \tkzGrid[color=orange](-2,0)(3,3)
+ \tkzAxeX
+ \tkzAxeY
+ \tkzFct[color = red ,domain = -1:2]{(((x+1)*x)*x)**0.5}
+ \tkzDrawTangentLine(0)
+ \tkzText[draw,color = red,fill = orange!20](2,1){$f(x)=\sqrt{x^3+x^2}$}
+\end{tikzpicture}
+
+\end{document}