Intervalo
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[tex] \boxed{ \large \sf \: \left\{ x \in \mathbb{R} / - 3 < x \leqslant 6\right\}}[/tex]
[tex] \huge\begin{array}{l}\sf\quad\, \!\overset{\,++++++}{\textsf{------------}}\!\!\:\!\underset{ - 3}{\circ}\!\!\:\!\overset{\!----------}{\textsf{--------------------}}\!\!\underset{6}{\bullet}\!\!\!\overset{++++++}{\textsf{--------------}}\!\!\!\blacktriangleright\end{array} [/tex]
