$\"\"$

\

The limit is $\"\"$ .

\

Consider different values of $\"\"$ .

\

Consider $\"\"$ .

\

$\"\"$

\

Graph the function $\"\"$ .

\

$\"\"$

\

Observe the graph.

\

As $\"\"$ tends to $\"\"$ , $\"\"$ approaches to $\"\"$ .

\

$\"\"$ .

\

$\"\"$

\

Consider $\"\"$ .

\

$\"\"$

\

Graph the function $\"\"$ .

\

$\"\"$

\

Observe the graph.

\

As $\"\"$ tends to $\"\"$ , $\"\"$ approaches to $\"\"$ .

\

$\"\"$ .

\

$\"\"$

\

Consider $\"\"$ .

\

$\"\"$

\

Graph the function $\"\"$ .

\

$\"\"$

\

Observe the graph.

\

As $\"\"$ tends to $\"\"$ , $\"\"$ approaches to $\"\"$ .

\

$\"\"$ .

\

Therefore we can observe that

\

$\"\"$ .

\

$\"\"$ .

\

$\"\"$ .

\

then $\"\"$ .

\

$\"\"$

\

$\"\"$ .