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\newtheorem{theorem}{Theorem}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{definition}{Definition}

 \begin{document}
 
Graph the function  $y=2\sin(3 x)$ on $-2\pi \leq x\leq 2\pi$
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%%%%%%%%%%%%%%%%%%%%%


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\linethickness{.5pt}
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%\put(0,0){\arc(7,0){180}}

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\put(0,0){\circle*{10}}
 

\end{picture}

 \end{document}