Construct the table for different values of

\"\"

, to estimate the value of

\"\"

: \

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

$\"\"$	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \
$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$

\ \

Observe the table:

As $\"\"$ tends $\"\"$ from left side, the value of $\"\"$ approaches to $\"\"$ .

\ \

$\"\"$ .

As $\"\"$ tends $\"\"$ from right side, the value of $\"\"$ approaches to $\"\"$ .

$\"\"$ .

Left side limit and right side limit are equal, $\"\"$ is exist.

$\"\"$ .

$\"\"$

Graph:

Graph the function $\"\"$ :

\ \

$\"\"$

Observe the graph:

As $\"\"$ tends $\"\"$ from each side, the value of $\"\"$ approaches to $\"\"$ .

$\"\"$ .

\ \

$\"\"$

$\"\"$ .