2.3a Svar 4d
Från Mathonline
\[ \lim_{x \to 3^{+}}\,{12 \over x - 3}\,=\,+\,\infty \]
\[ \lim_{x \to 3^{-}}\,{12 \over x - 3}\,=\,-\,\infty \]
\[ \lim_{x \to 3^{+}}\,{12 \over x - 3}\,=\,+\,\infty \]
\[ \lim_{x \to 3^{-}}\,{12 \over x - 3}\,=\,-\,\infty \]