\(\underrightarrow{x~\hbox{approaches 0 from the left}}\)
\(\underleftarrow{x~\hbox{approaches 0 from the right}}\)
\(x\)
\(-0.2\)
\(-0.1\)
\(-0.01\)
\(\rightarrow \)
0
\(\leftarrow \)
\(0.01\)
0.1
\(0.2\)
\(f(x)=\dfrac{2-2e^{x}}{x}\)