\"\"

\

The function is \"\"

\

\"\"

\

To estimate value of limit , construct a table with nearest values of \"\"

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\"\" \

\"\"

\
\

\"\"

\
\"\"\"\"\"\"\"\"
\"\"\"\"\"\"\"\"\"\"\"\"\"\"
\

Observe the table:

\

The value of \"\" at \"\" is \"\" and the value of \"\" at \"\" is \"\".

\

The value of \"\" .

\

\"\"

\

Graph the function:\"\".

\

\"\"

\

Observe the graph:

\

As \"\" approaches to \"\", \"\" gets closer to \"\".

\

\"\"

\

\"\".