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- \begin{tikzpicture}[scale=0.4,line cap=round,line join=round,>=triangle 45,x=1.0cm,y=1.0cm]
- \draw[-latex,color=black,thick] (-7.42,0) -- (13,0) node[above] {$x$};
- \draw[-latex,color=black,thick] (0,-6.21) -- (0,9)node[right] {$y$};
- \draw[color=black] (0pt,-10pt) node[right] {\footnotesize $O$};
- \clip(-7,-6) rectangle (12,5);
- \draw[smooth,samples=100,domain=-pi:pi,thick,variable=\t] plot({2*sec((\t r))},{sqrt(2)*tan((\t r))});
- \end{tikzpicture}
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